Fibroids usually do not affect pregnancy or cause any symptoms. Most of them are very small or are located in an area of the uterus where they don’t have any impact on pregnancy. Although most pregnant women don’t even know they have fibroids, between 10 percent and 30 percent of pregnant women actually do have them.
Fibroids can sometimes cause minor symptoms. Some fibroids grow on a stalk similar to a skin tag, and if they begin to twist, a pregnant woman may experience pelvic pain and light spotting.