Hi everyone!

So, my fiancé and I had sex on September 20 and 21. According to this app, my fertile window began September 22. Both times we had sex, we used a condom and checked the condom for tears/leaks afterward. My period was due 5 days ago... I have had some signs that usually indicate my period is on the way (acne, bloating, headaches, fatigue), but my period hasn’t come yet. I’m in my senior year of college and school has been really stressful for me lately, so I’m thinking my period could be late because of that, but I’m not sure. If my period doesn’t come by Sunday, I’m going to take a pregnancy test, but I’m becoming increasingly concerned. Any advice or words of wisdom would be appreciated!