Confused

My period came the first week of December and then I had sex with my boyfriend afterwards and took morning after as well as minigynon because we didnt use any condoms.

However my period came on the 27th of December again and I think that’s because I took the pills, however we had sex the day after that and he ejaculated in me and I didn’t take anything. Should I be worried ? Or was I still on my safe days