Hi everyone! I usually just stay on my local board but have been lurking for a bit here and am learning so much. Wanted to see if anyone had any experience with canker sores, maybe as a sign of pregnancy? For years I have always gotten canker sores when I get AF. They always pop up a few days before like clock work and then I get AF. My OB said it's just because of my hormones going crazy at that time of the month and that it can be common in some if you're already someone who gets them (plus runs in my family). I am not due to get AF for a couple weeks and had a bunch of them pop up in my mouth last weekend, when I was having CEWCM. It is hard to remember but I could swear the same thing happened when I was pregnant with DS. I know stress could also cause this but I never get them at this time so am hoping it could be a good sign. I have been googling and saw a few stories similar to mine but not much. Anyone else have this happen?