Please or to access all these features

Conception

When's the best time to get pregnant? Use our interactive ovulation calculator to work out when you're most fertile and most likely to conceive.

Chart help! BBT rise before LH peak?!

1 reply

TheKhakiLion · 29/10/2026 15:08

Hoping someone here is a chart expert and can help me out 😊

I normally ovulate between day 11 & day 14. This month, I was testing using LH strips and using my Apple Watch for BBT with natural cycles.

Day 9 - did LH tests in the morning & evening, both negative. The evenings test was getting darker but nowhere near peak.

Day 10 - woke up to a huge BBT rise. I was lying awake in bed for about an hour before my watch took my temp, so I assumed it wasn’t quite right & would likely drop again the next day. I did an ovulation test in the morning that was high, then by the evening by LH test was positive.

Day 11 - another rise in my BBT, LH test was high but not positive.

Day 12 (today) - another rise in my BBT, to the point that natural cycles has excluded it as it’s outside normal range.

Not sure what’s going on! I know I just need to wait but wondering if anyone has had anything similar before? TIA!

Chart help! BBT rise before LH peak?!
OP posts:
cantquiteknityet · 29/10/2026 19:25

I use NC but with thermometer/recently moved to their wristband, so I don’t know how it works with an Apple Watch- how is it that you were awake for an hour before it took your temp? The app is based on picking up your lowest reading overnight- does the watch have this functionality?

New posts on this thread. Refresh page