Using a condom help!

M

So me and my bf have been taking about having sex but I stopped my pill about two months ago. I just got off my schedule so far I couldn’t get back on the pill until my new prescription. We are definitely going to use a condom but we’re just wondering how bad it would be if I wasn’t on the pill. I’m supposed to get my period in like a week and that’s when I’ll be starting the pill again. But we are in high school and won’t have any alone time once school starts. Please help!!