Help! Any one have thoughts? Similar?

I was only on bc ( combo pill) 6 days before I had to take a plan b pill. I had started bc half way through my cycle, i was in my fertility window but I have no clue when I ovulated.( ive been hearing stories that plan b does nothing if you’ve already ovulated) I did notice I was having thicker CM when I started bc like almost pastie tmi. So here’s the kicker AF is due today and I have never been late but my pills are set up so that I have 5 days till I start my period pills. I plan on testing tomorrow anyways but what do you guys think the outcome could be? I’m obviously not trying to have children, that the reason for getting bc but of course the condom broke 🙄 on Monday I did have cramps and bad achy lower back which is my biggest period symptom but no period