As per my previous question that I had unprotected sex during my expected period date i.e. 22nd December. My last period started on 22nd November. My periods hasn’t started yet. I have thyroid and am on medication for a muscle problem under my right breast and taking medicines for vitamin b. Could i be pregnant or it's just because of thyroid and other medicines? Are there chances of pregnancy? I got my periods today. Do i still need to take a check for pregnancy? Could i still be pregnant?