I miss my period 😔

This is my first actual relationship that I have sex in. so the whole body changing after having sex is really over whelming to me. And now we're 3 months and we have had sex with condoms and we did it twice with out but I took plan b for those times. And ever since then Ive been making sure we're careful but now I'm worried cause I haven't gotten my period, and I know this might sound crazy but I actually miss having it. So idk what's going on, idk if I'm pregnant cause last month I did have some bleeding but it lasted for about a week and now for this month I'm not getting no symptoms of PMS or nothing. So idk what to do idk if I should just wait it out and see. Because my period is irregular and it comes and goes so idk I'm just freaking out .