A lil concerned

i'm just a lil concerned lately, my period was supposed to start today but didn't and i have unprotected sex but use the pull out method. yes ik you can get pregnant from precum but it's just not common so i don't think much about it. at first me and my boyfriend were not using condoms, then i needed plan b twice so we started using them but they kept breaking but he would pull out before he came and now we use no protection, but either way in between cycles, i started spotting as well. idk i'm just concerned and low key freaking out.

side note: i brought up having my period to my boyfriend and he said "well see if you actually get it" and i have been fatigue, having cramps, nausea without puking, and headaches