it could just be your body adjusting to the pill but i would do a test just incase the pill wont harm your baby so dont wurry about taking it if u are
Yes, take a test to be sure. I am not familiar with that type of birth control or the side effects but taking a test is vital if there's a possibility you could be pregnant. Please do so to be sure -- there are so many women who want children out there and can't have them and it would be a shame if you were pregnant but the birth control harmed your unborn child. Obviously if you haven't had sex since your last period though then you are probably okay but a $6 pregnancy test would be a comforting option to get any doubt cleared up.