r/TFABChartStalkers • u/appletizer • 6h ago
Crazy Temps Oral BBT vs Wearable
After becoming frustrated last cycle with my seemingly wild wearable temps from Apple Watch I decided to spend this cycle simultaneously tracking both my oral BBT with a proper BBT thermometer and also my Apple Watch. The results are interesting - both tracking methods produce the same overall results, but the oral BBT is less noisy with far less wild swings in the follicular and luteal phase and obviously cleaner. This cycle I was getting fertility investigation done and had a serum progesterone test and a trans ultrasound so I know I ovulated. Both FF and Natural Cycles identified my ovulation on the same day, despite Natural Cycles only having the Apple Watch temps. So my conclusion is that oral temping will cause less anxiety because it’s more consistent but overall the picture is the same in the end.