I just started tracking my BBT for the 1st time, and since I didn't start around the beginning of my cycle, it's hard to tell what I'm looking at. Since I started using Glow in November, I've consistently had 27 day cycles. Last cycle was 30 days (thought I could have been pregnant, but AF showed up 3 days late). Now this time I'm on day 37 and no AF and it looks like BBT is still rising. Having pregnancy symptoms, but I feel like I always am now I'm TTC, so who knows? Tested yesterday: BFN.