Help!!!

I've been TTC for 3 months. I need help knowing when I can take PG test to know for sure. I don't want to do it to early and get a BFN. My last period was September 21. I didn't get a period at all in October, I was supposed to get it the 26, it's November 2. my glow keeps changing my AF dates. I was going to wait til next week to test but I want to do it but I don't want to be disappointed again. 2 days ago I could tell my breast we're starting to hurt. Yesterday my nipples we're sensitive and if I went to go squeeze them a little around there it would be sore and today they feel like that and a little bigger. my breast don't feel sensitive normally when I'm on my period or before they normally just get a little bigger.