Plan B - Morning After Pill

Last month me and my boyfriend had an accident with the condom and I took the Morning After Pill because I was a bit scared and was advised to do so. Everything turned out ok. No side effects, normal mestruation, etc. This month happened the same - the new condoms I bought were large -, so we used withdrawl. I don't really know what to do. I feel very irresponsible, but I'm just taking the normal pill starting next cycle.