Pregnancy %?

Liz

I started the birth control Junel 3 weeks ago. When I took my first pill i was on the first day of my period. I remember reading that if you took the pill on the first or second day of your period it’s immediately effective but if not then you have to wait 7 days. I just want to make sure that’s correct because me and my boyfriend had sex and he came in me 6 days after I started the pill.