I'm worriedddd!!!

so I'm on birth control and I started it at the beginning of this month. My period just ended like Tuesday June 21 I think, and me as my bf had sex on Wednesday and he came in me, I'm still scared that I could still get pregnant. I also had a Gyno appt the day after we had sex and I've been spotting since then and I didn't know if it was from the gyno since they like scraped my vag wall or if it's bc the sperm got to me??!!! HELPP im scared!!