About 3 weeks ago me and i had sex, he had a condom on and im on the pill (trinessa), not while he was inside me and before he came he had to take it off because it was sliding down. We were still fooling around but i dont believe he went inside me again (im new at sex so we were still feeling things out) and i know for that he deff ejaculated not inside of me, but on himself because he had to get up to clean up. However im getting nervous that i could be pregnant but i dont know what the possibility of that would be.

I was supposed to get my period two weeks ago however, i mistakenly took my new pack of pills instead of taking the placebos, therefore it skipped my period, so idk if the symptoms that i think im feeling are just because of the skipped period and the fact that i messed up my cycle? I also recently had some brownish discharge, and back pain but only after exercising, which i know could also be related to regular period symptoms...