Nope. Once you’re pregnant, your body starts creating a hormone called hCG, which puts a stop to your cycle. You still may experience bleeding, though — about 20 to 30 percent of women do during early pregnancy. Some common causes are implantation bleeding (light spotting that happens 6 to 12 days after conception and lasts anywhere from a few hours to a few days), pelvic or urinary tract infections, and sex.
Now, don’t freak out (always save the meltdown for after a call and visit with your doctor), but there are also some more serious reasons for bleeding. These include ectopic or tubal pregnancy, molar pregnancy, placenta previa, preterm labor and, yes, miscarriage.
If you do experience bleeding, wear a pad so you can keep track of the amount and type of bleeding for your doctor. Even if it turns out to be nothing serious, a call to your doctor is always a good idea.