Per the Ovia app, today should be AF day 1 if I follow a 28 day cycle as I did when on the pill. However, last month (month 1 off the pill) it was 30 days, which would mean AF day 1 would be Saturday the 16th. Based on Glow, AF shouldn't start until next Wednesday the 20th, which seems way off to me. I've been cramping off and on for a couple of days, which is pretty normal for me for PMS the day before I start, but this morning I woke up pretty nauseated, which never happens. I really don't think we got the timing right to conceive this month, so I'm almost positive I'm not pregnant yet. Even if I was, I wouldn't be nauseated this early on, would I? Does anyone else have nausea with PMS?