I Recently Had My Bud Removed January 31st, I Had

I recently had my bud removed January 31st, I had unprotected sex a few times but used the pull out method, and i haven't gotten my period. I was only on the mud for 4 months. I had spotting on and off here and there but no period. I took a pregnancy test(neg) but my period is 7 days late. I have no symptoms other than that but it was the same with my daughter, so i don't take it as much.