How harmful can Ecps really be?

Ayesha • Living each day at a time

So my boyfriend couldn’t find condoms and so we had sex without a rubber but he didn’t cum. But I am excessively paranoid so I took ecps a few hours after we had sex. But the last time I had ecps they fucked w my period cycle and for a few months after taking them my period used to be either really late or really early. So now I’m freaking out about if they will do the same this time or sth even worse. I’m just very concerned! Please help!