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@ljw I haven't seen a paper with a histogram of peak or surge LH ranges to give a percentage, but there are definitely plenty of reports that include LH "peak" at lower than what would trigger a positive OPK (I've seen as low as 6.5 mIU/mL). There could be a number of reasons: 1) Your peak that...

@kenfeyl CBAD is a different ball game because flashing smiley (high) indicates estrogen is increasing and you're entering into your fertile window. You're right that the solid smiley will pop up when you start your LH surge, and there's no way of knowing how many days you will have the blinking...

@curiouslycurious It could just be that you have lower levels combined with the hydration factor - if you're consistently getting alllmmosstt as dark as the control line and you're confirming ovulation afterwards, then there's no need to worry about getting the "blazing" positives!

@curiouslycurious Is it that you don't get strong/blazing positives, or can't pick up a positive at all? If you're getting at least one positive a cycle, and you can tell when it starts getting darker, you're probably fine to use your best judgement in analyzing them for planning FW sex. If...

@onmyway65 Rather: the FW *can* be shifted, doesn't necessarily mean it *is*. There's variability in patterns, and it's hard to identify your pattern. The LH ratio numbers can't really be used like this, because the level of detection isn't always in the linear range, and because baseline is...

@nelson9 In that case I think it's fine! You could also try a brand with higher sensitivity - you could just have levels on the lower end. That's not a bad thing - it seems to be the fold difference rather than a certain concentration that's important for inducing ovulation.

@00sweetpea00 Hard to say! It could just mean that you had a biphasic LH pattern. In the examples provided in the studies, ovulation generally was associated with the first peak in most of the time biphasic LH patterns, but the descriptive statistics weren't listed in terms of how many of the...

@tbo84 Yes absolutely possible!

@logicuser777 I'd say CD13 is more likely but CD14 is still possible. Note the bullet in the post about BBT - sometimes it can take a couple days to rise. I think regardless of if O day is CD13 or 14, you had decent timing, especially since you got two sessions in on CD12. What all the...

@mcg1102 Definitely! I know people want to know what they should do...but part of it is just figuring out your patterns and that comes with lots and lots of data, and even when you think you've figured out your own patterns, you can have an off cycle because people have intrinsic variability...

@servant15 Interestingly, all of those studies listed were done with FMU. Anecdotally, I've found that my SMU and mid afternoon hold LH strips have been darker. In another study that looked at time of day (https://academic.oup.com/humrep/article/20/9/2542/2356829) they found that almost half of...

@mcg1102 Just building on an already solid foundation ;)

Before reading, it might be helpful to see these previous posts by /@mcg1102: OPK patterns, LH profiles, and you Digital OPKs: a primer With an uptick in folks using apps like Premom and Femometer to determine OPK positivity, I thought this might be a good overview of what those LH ratio...

@socakitty I made the chart before the PMP diagnosis... I think having one for molar pregnancies would be a great resource.

@mcg1102 Yep!

@cdw I only really take it during my period. In that study they started taking it in day 10, so taking it for the first couple days of your period should be fine! It doesn't hang around for very long. But good to know for muscle soreness and stuff!

@pitcreature It seems some docs do them if asked and some docs won't, but it's definitely not required. I just had a lot of questions and the NP was happy to meet with me to talk about it :)

@katrina2017 She said that there's been a lot of evidence about maintaining oral health being good for pregnancy. During pregnancy, the fetus leeches a lot of Calcium and apparently that can be pretty hard on your teeth. Also, going and getting X-rays done before pregnancy helps reduce the risk...

Hey WTT! I know there’s been some discussion on what happens at a pre-conception appointment, so I wanted to give an update to mine this morning! My timeline: I’ll finish up my last week of active pills of orthotricyclen HBC this week, and will use barrier methods and track my cycles until we’re...