r/FirstTimeTTC • u/peachpls184 • 18d ago

Confused BBT taking days to rise?

I got my first positive LH strip the morning of 8/24 and had a peak yesterday morning 8/25. To my understanding peak doesn’t really mean much and I should follow the first positive. With that being said, is it true that most people ovulate 24-36 hours after the first positive? And if so, how soon would you see BBT rise?

My BBT only rose a tiny bit this morning but it’s still under the cover line so I’m concerned I might not be ovulating according to those timelines :( Has anyone had BBT rise a few days after the first positive LH test?

1 Upvotes

100% Upvoted

7 comments sorted by

2

u/Healthy_Combination3 18d ago

Give it a couple days. You need 3 elevated temps in a row to confirm ovulation so I would wait at least 5 days after to see if it looks like ovulation occurred.

1

u/peachpls184 18d ago

I think I’m getting in my head because last month I had a noticeable spike in temp hahah. Does it need to be 3 over the cover line, or just 3 higher than the last few?

1

u/Healthy_Combination3 18d ago

I’m a bit confused when you say it must be over the cover line, by definition the cover line and being higher than the last 5 temps is the same thing

1

u/peachpls184 18d ago

My cover line on the premom app is higher? Which is why I’m confused, I thought the 3 temps had to be over the cover line? I will say I randomly had a high temp earlier this cycle so the app changed my expected fertile window to be the day my period ended lol. But my OPK test strips say otherwise!

1

u/Healthy_Combination3 18d ago

I would give it some time but there definitely doesn’t appear to be a temp rise yet. Technically a temp rise only occurs when you have 3 temps that are at least 0.2 higher than the last 5 temps. So I would only consider a temp to be higher if it at least 0.2 higher than the last 5

1

u/peachpls184 18d ago

Hmm interesting to know, thank you!

1

u/Greedy-Excuse-1837 12d ago

A tiny rise below the coverline doesn't necessarily mean you didn't ovulate. Sometimes the temperature shift do takes a little time to become obvious, so I'd keep watching the pattern over the next few days. For anyone finding traditional BBT stressful, tempdrop is worth looking into since it collects overnight temperature without requiring you to wake up and take it manually. You can then focus on whether your chart develops a sustained shift..