Help me decide when I ovulated

[ThePeachBear]

I was planning to take it easier this month around because I tend to obsess and keeping a chart wasn't helping with that. However I did take write down my bbt's and also used opk since I ttc through insemination.

On CD15 my opk was negative at 7am but positive at 7pm. BBT was 36.10
On CD16 my opk was positive at 7am but negative at 7pm. BBT was 36.30
On CD17 my BBT was 36.20 and on CD18 it was 36.70 and stayed up since.

So I'm thinking I ovulated either in the evening of CD16 or in sometime during CD17, but I'm not sure if there's a way to know which of the two? I inseminated on CD14 and CD16 so that timing was OK either way I think, but now that I'm in the tww I just kind of want to know if I'm 5dpo or 6dpo...

Counting with 5dpo so far just to not get ahead of myself.

I have this struggle too but from my research and also from my experience with my first (and only) pregnancy, I would guess that you ovulated on CD16.

Im 5dpo and the tww is a killer!!!

With home testing/tracking there's really no way of knowing exactly. The length of time between the first positive OPK/LH surge and ovulation varies from woman to woman and cycle to cycle - it can be from 0-48H. In some women/cycles LH can stay high for days following ovulation (in most cases by the time LH 'peaks', ovulation has already happened).

BBT confirms ovulation, but not when - again, there's variation in how long after ovulation BBT rises. In some cycles BBT rises as late as three days after ovulation.