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Pregnancy Tests

Pregnancy tests are designed to detect the hormone human chorionic gonadotropin (hCG). HCG is often called the “pregnancy hormone” because it is produced during pregnancy and is made by cells that form the placenta. Blood tests to detect the hormone are conducted by a doctor, while urine tests can be performed at home with a home pregnancy test (HPT).

Blood Tests

Blood tests are slightly more sensitive than urine tests and can detect very small levels of hCG. This allows doctors to get an accurate reading very early on in the pregnancy, about seven to 12 days after conception.

Most clinics will perform a blood test about two weeks after fertility treatment to check the level of hCG. A level of less than 5mIU/ml is considered negative for pregnancy, and anything above 25mIU/ml is considered positive.

In the event that the pregnancy test is positive, the patient will be asked to repeat the blood tests at two- to five-day intervals to check for rising levels of the hormone. In general the hCG level will double every 72 hours. It will reach its peak in the first eight to 11 weeks of pregnancy and then will decline and level off for the remainder of the pregnancy.

In addition to blood tests, an ultrasound will be performed about five weeks after treatment to confirm pregnancy. The scan will verify if the pregnancy is normally located, appears viable and if there is more than one fetus. If you are pregnant, you can follow your Pregnancy Week by Week at

Caution must be used when weighing the importance of hCG numbers. A normal pregnancy may initially have low hCG levels and result in a perfectly healthy baby. It is important to direct any questions and concerns to your Ob/Gyn or fertility doctor about your results.

Home Pregnancy Tests (HPTs)

HPTs are inexpensive, private and easy to use. These urine tests can detect pregnancy about two weeks after ovulation. Most drugstores sell HPTs over-the-counter, and prices can range between $8 and $20.

Many HPTs work in a similar way and consist of placing a drop of urine on a prepared chemical strip or placing the strip in the urine stream. The strip is designed to detect the pregnancy hormone.

If an HPT indicates you are pregnant, you should call your Ob/Gyn or fertility doctor right away. He or she can then verify the result.

To learn more about OTC pregnancy tests, read Not All Pregnancy Tests are Equal


Comments (115)

am feeling some abdominal pains just of resent and i am expecting pregnancy. though my cycle is 35 days and on 30th day i check if am pregnant and the result is negative. can i still be pregnant?

Sola - If you believe that you may be pregnant I highly recommend that you consult with your doctor. He or she can do blood tests to determine whether or not you are pregnant.

normally my period comes between the 4-11 last month my period was late and came on the twenty first i had spotting and in july i didnt have a period have taken two urine test from the hospital and both came back negitive

Marissa - aside from being pregnant, there are other various factors that can contribute to an irregular period. Stress can cause your period to become irregular. If you are concerned I highly recommend that you consult with your Gynecologist to discuss the recent change in your period and what could be causing this.

Hi I've done a couple of pregnancy tests over the last wee and a half as I felt different however they are all negative. I'm due on about now. I had a.blood test on Monday and it has detected 11ml/U/ml. What does this mean? Am I pregnant or not? Xxx

Sophie - Did your doctor that administered the test go over the results with you? If he or she didn't I highly recommend that you call to discuss your test results. Best of luck!

hi im just a little confused. Me and my husband have been trying to get pregnant for a couple months now. I had my iud taken out on April 22 2014. I got a positive test on July 14 2014. then morning of the next day I was spotting, on what would have been the day i was supposed to start my period. light bleeding. not sure if i should wait to see what happens. has this happened to anyone. i just am confused as to why it would be posistive then bleeding

Hello Sharon, I'm sorry to hear that you've been struggling. If you are under the age of 35 years old it is recommended that you actively try to conceive while tracking your ovulation for at least 12 months. Since you just had your IUD taken out it can take your body a little while to adjust. If you are concerned about a false positive I recommend that you consult with your Gynecologist. If you're over the age of 35 you may want to consider seeing a Reproductive Endocrinologist. If you need help finding a reputable fertility specialist in your area feel free to email me directly at

I have been feeling weird I been in a bad mood and every time I eat I feel like throwing up but I don't .I'm not regular on my period at all so is nothing new but this time I got up to pie and I pie nothing but blood so I thought to my self that I had start ny period already ,so. Hours pass and i gotta go to the restroom again so im specting to have bleeding but I don't at all my pad was clean and everything but I been having gramps like if am in my period . what yall think it means ? Am I pregnant?

Dee - When you pee is there blood in your urine? If so, the symptoms that you're experiencing could be related to an infection or underlying issue of some sort. If you do not feel well and there is blood in your urine then you should consult with your doctor as soon as possible to determine why you are experiencing these symptoms so that they don't get progressively worse.

so I have missed my period for about a month now, I took it upon myself to take 5 at home pregnancy test in this last month all of them have been negative. I even took it to the doctor and got a blood test that came out negative also. So when I did a little research I read that this could also be a sign of ovarian cancer I'm very terrified I'm very very worried! Somebody please help

Take a deep breath. A missed period could mean a number of things, so don't rush to think that it's cancer. Do you have any other symptoms? Is this the first time you've missed your period? How old are you? You may want to call your doctor's office and ask to speak to the doctor or nurse on staff, to discuss your concerns. Best, Claire

Hi, I missed my period and did a home preg test after a week, it came negative. I did again after 2 week and it came negative so we went for blood test. The next day I got my period and HCg was detected as 23 in blood test. Doc said you were not pregnant. My periods went on for 4 days. Is this normal? I'm sorry, but we went to a new doc and I do not trust the doc much. Please help

It sounds like you were not pregnant - HCG would be 25 or higher and then continue to rise quickly. Let me know if I can be of other help. Best, Claire

My period is usually regular every 32 days im now 19 days overdue and 2 pregnancy tests say negative. Sex has become uncomfortable and slightly painful. Could I be pregnant? Does an uptopic pregnancy show on a home test?

An ectopic pregnancy will show positive on a pregnancy test. If you are concerned, please see a doctor. Best, Claire

I took a clearblue easy digital test a couple days before my period was due on 12/23/13 . My period was due on the 27th. It came back positive. I had a late miscarriage on 8/23/13. I'm high risk so they've taken blood the 27th and the 29th. They were 29 and 38. I only just missed my period but I'm worried that it's a chemical. My symptoms are getting worse though. I'm always nauseous and always running to the bathroom. Can anyone relate?

My periods are usually on time every month. I had one in September, October, November . But now in December I am three days late took a test yesterday said negative. Now I'm starting to have a very light pink discharge and it just started today. I should've had started my period on the 27th and yet I have not. This never happened to me not even with my first pregnancy. I had just simply missed my whole period. Any ideas on what might be happening?

I am 2 weeks late took pregnancy test had faint line then it disappeared i took an ovulation test the test line was darker than the control line and i have a clear sticky mucus discharge. im getting more tired and my mood swings are changing could i b pregnant?

I bought 9 pregnancy test and 3out of nine came out negative the other six are postive could Ibe pregnant.??

It really depends on when your last period was and when you took each test. If you have any concerns, you should see a doctor. Best, Claire

I've been TTC for the past 6 months and each month AF comes on schedule. Well this month not only was my cycle early(arriving at 12 dpo) but it was also short and light, lasting only 3 days when my cycle is usually 5 days and heavy. (Sorry in advance for the tmi), but I also didn't shed any of my uterus' lining. I've been experiencing some symptoms, like nausea andhheartburn. Am I going crazy and imagining all of this. Please help!

Have you taken a pregnancy test? That would be the first step. Best, Claire

i have taken a test after 14 days of missed periods n i got negative results. sometimes my periods become late but bot more than 10 days but this time 14 days. Is there chance of pregnancy? I am worried and confused. Please help me.

You really should ask a doctor your pregnancy questions. You don't say whether you are trying to get pregnant, but if you are and your periods are irregular, you should have a fertility workup. Let me know if you would like more information. Best, Claire

Hi :) I'm seven days late on my periods I took loads of tests even expensive ones but they all say negative now iv been preg before but I was really young so I had a abortion no rude comments thanks :/ you don't no what happened thank you ... Iv no signs I pee a lot mind but I really wanna no if I am preg sooo please can someone tell me what's happinng or am I taking test to early ???? Thank you :)

Some pregnancy tests let you test as early as the first day of your missed period, others require you wait a week. If you're getting a negative result, but are concerned, you should check with your doctor. Best, Claire

Ok ladies, I always start cramping a week or more before I expect af to come. 6 days from af I decided to just take a FRER for the fun of it. It came out as a light positive, so I went to the hospital where my hubby works and got a blood test done. They say anything above a 5 is considered probably pregnant and mine was an 8 but the lab tech just looked at me and said "I don't think you are." So this is 2 days later I take another FRER and it's a lot darker positive. I'm confused because people say that if your hcg levels are low then you're probably going to have a chemical pregnancy. Any thoughts?

i have been having real bad stomach pains, hot flashes,i have been feelig sick and extremely tired..i took a pregnactest it said negnegative when i looked a t it 2 hours ltter it said positive. i took two more and it said negative. Could i be pregnant??

If you're concerned that your pregnancy test might not be accurate, a doctor can do a blood pregnancy test.

My last period was last month on the 11th i was ovulating week after to aug 27th i had sex through the time i was ovulating i went to the doctor next day to get t.b skin test & i told my doctor everythin she gave a urine pergnancy test it came back negative so she gave me birth control i havnt took it yet . i still not sure if i am pergnant or not because i am two dayd late on my period for this month ? Should take a hpt or call my doctor again ?

Since you are concerned, I would call your doctor for clarification. Best, Claire

I missed my perind for 2months now PT test with urine said positive,ultrasound and blood test was negative and my breast milk is licking i don't know wot the problem is please someone should help me am confused plz.

You should consult your doctor who did the blood pregnancy test. Best, Claire i had my period august 2nd , and i got off my period august 7th i had unprotected sex on august 8th , august 15th and august 23rd both of those times he finished in me. I havent gotten my period could i be pregnant?? when can i take a pregnacy test?

You can buy over-the-counter pregnancy tests at your local drug store for home testing or your doctor can do a blood test to determine if you are pregnant. Best of luck, Claire

when i pee i think i saw little blood but light than i took a tissue to wipe my vagina than there was pink thingy on te tissue . than the next morning i went to toilet again and i wipe my vagina afer i pee i think it was aliitle bit darker than yesterday . now i scaared whats happpening to me ?

If you are concerned about bleeding, you should see a doctor right away.

I took five pregnancy test and one had a vary vary lightseconed line and another has two lines but the second didnt appar thill later that's three nagative and two positive but i had a very weird period b4 I started taking these test any one no whats going on

A blood pregnancy test at your doctor's office is the most accurate way of determining if you are pregnant. Best, Claire

ok my husband sperm count is low and we been at this thing for 7 mons wit no baby dust but now all of a sudden im getting bloated, my feet are swollen, my nipples hurt but not my breast and I constantly have to pee and he eat and sleep a lot more than normal... cud I get sum help to what to expect by this...

hi i took two pregnancy test and day later a came on my period could i be still pregnant can any one help me

Hi Samantha, In this case, it is best for you to contact your OB-GYN. Sometimes bleeding is normal in early pregnancy, but only a blood hormone test will be able to determine if you are pregnant for sure and an ultrasound will check on the status of the fetus. Best of luck, Kim


Hi there, Have you had a blood pregnancy test done? It is the most accurate way of determining if you are pregnant. You should also rule out the chance of it being an ectopic pregnancy with the blood test since you mention there is no pregnancy to be found on ultrasound scan. Best of luck! Kim

Unprotected withdrawl sex 3 times in 9 days..... Constantly nauseated, hungry ALL the time, urinating more, wicked dizzy spells to the point of falling, headache, sounds/lights bothersome.... Pregnant?

I am hoping that someone has perhaps had a similar experience and can give me some clarity on what I should do. I had sex on Dec 14th - twice with protection and the third time without. Was my first time and bled severely afterwards and the next day. Refrained from having sex again until the 16th when bleeding stopped and to be quite honest have no idea how many times we did it and did not use protection at all. We had sex again on the 18th several times without protection. I started what I believe was my period on the 19th and bled quite heavily for five days which is highly unusual since I have been on the pill for years and have been bleeding two days at the most whilst on the pill. I had stopped taking birth control a few days prior to my first sexual experience. Since then I have had my period in January (same dates as noted for december) and in February also from 13th - 18th - also heavy bleeding as in the previous two months noted. I have however got pregnancy symptoms: bloating of stomach, breast tenderness, nausea and severe heartburn-went and saw a GP who sent me to have a clearview pregnancy test done that was negative. Symptoms persist though and I did another clearblue digital pregnancy test earlier this week which was inconclusive...think I did something wrong when I tested myself. Symptoms persist though and I have started feeling movement in my stomach as my calcs if I am pregnant then I should be coming to the end of my first trimester. Is it at all possible that I could be pregnant or is this all in my please I am desperate!!!

i took duphaston 3 months ago ..i stopped taking it in February and i had many sexual intercourse with husb . Now my period is late 23 days, i had urine test was negative . today i wanted to do blood test they told me u should wait 3 days more . am i pregnant?

Ok well i started my period on Jan.15th i went to the hospital Jan. 23rd with really bad pain in lower left stomach. i had my period again two more times in a week found out i have a small cyst. I took a home pregnancy test on Feb. 24th came out positive. took 3 more Feb. 25th they all came out negative. then on Feb. 26 i started my period. could i be pregnant or is it the cyst doing this to my body?

hi i would like to ask if im pregnant, ive never been delayed during menstruation, but this january, i didnt have menstruation and immediately got urine pregnancy test with result of positive , (ive done my urine pregnancy test in the afternoon) but i feel breat tenderness, nausea, ovary location is aching and delayed menstruation for this coming 2months, is it possible that im pregnant?


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