Well, you don't get your period when you are pregnant. A period is when the uterus sheds the lining because there was no implantation of a fertilized egg and therefore the rich lining is not needed by the body. Sorry-just bugs me when people say they had their period while they were pregnant. Nope, you didn't. It's a pet peeve kind of morning. lol
*But* you can have bleeding while pregnant for a variety of reasons. Most of the time it falls within normal limits.
You are taking a hormone. That can affect your body in a lot of ways. I have to agree with Tina F. Take a pregnancy test and/or call your doc. There are lots of times that I'll have pms symptoms that make me swear I'm pregnant. Our bodies do weird things sometimes.
Only your doc and a pregnancy test will give you the answers.