I am more than likely just overthinking this but I could really use someone’s opinion.

I hadn’t been sexually active for about a year and a half and I forgot to track my period the last few months. I know I was on my period around the 16/18-20-22 of January. somewhere in that time frame. Sometimes I’m a few days late or a few days early, so my cycle isn’t too irregular but most definitely not regular. I had sex with this guy on February 7/8 which was a few days after my fertile window ended, BUT we used a condom and he didn’t nut during vaginal intercourse. I have a yeast infection right now (the 18th) and I should be on my period right now (but I’m not). I seen that yeast infections can be caused by pregnancy? I’m so confused and in my head about the situation so someone else’s opinion would really help. Thanks in advance!

(If this helps, the discharge is white little specks/chunks. No smell. Itching. Soreness.)