Can I still be pregnant if I had then get my period?

I get my period on the first of every month...I had unprotected with my partner on the 29th & 30th of March & he d in me both times. I ended up getting my period on my scheduled date which is the 1st of April..although I got my period could I still get pregnant? The 29th & the 30th arent my most likely days of fertilization but is it possible I could still get pregnant..please answer very THOROUGHLY!