Another one about pregnancy, but please help!

Hey Ladies. So I have been recently panicking that I might be pregnant, and I just want help from you girls and your advice. My boyfriend and I have sex quite often, but we always use protection even the spermicide condoms, the only time he has gone in is when we have grinded before sex and the tip slips in, but he pulls it out immediately. Today I was supposed to Start my period, and I know I'm not even a day late yet, but my mom keeps freaking me out about my period. And I just want some ideas on what you girls think. Thank you so much!! ❤❤