Seeking OPK details

[mamalove1]

SO Friends,
Cross Posting -
If OPK is negative after one day of positive, is that the day I can assume I O'd? If so, I am 2DPO. Also, if three months in a row, I O on day 16, can I assume that is my O date? Or do I need to keep up the OPKS?

[Lousli]

Do you have other signs? I always use a combination of things: temp, cm, o pain (if I have it, which I only do sometimes), libido, and OPK's.

I wouldn't assume that CD 16 is it, it can change a bit from cycle to cycle depending. I think it would be okay in general to think it will be around CD 16, but I'd cross-check it with other signs.

[Arianwen1174]

Definitely correlate it with other signs. Temping would tell you for sure, but I know not everyone wants to do that. I thought I was fine without temping but decided to do it this month and was surprised to find that actual O happened 2 days after my + OPK and EWCM. That is a very good thing to know!

[hoping4just1more]

I have stricly used OPK's as conception methods with great success. I over time have learned the things to watch out for like CM, temp, and all the things listed above. But I never really have a problem with dropping an egg (with the exception of when I am BFing) so I could rely strictly on OPKs. I just DTD everyday for about 4-5 days in a row starting with the day of the +OPK it worked almost every single time. The LH surge signifies your body gearing up to release an egg but you don't know if you really Oed unless your temps change. But if you don't have any conception issues I would say just using OPKs to time would be just fine. Especially considering it happens for you on the same CD every month.


If time goes on and you still have not concieved then you might want to start watching your temp and mucus.

[babygrey]

Originally Posted by mamalove1

If OPK is negative after one day of positive, is that the day I can assume I O'd? If so, I am 2DPO. Also, if three months in a row, I O on day 16, can I assume that is my O date? Or do I need to keep up the OPKS?

I asked the same ? to my RE today repks that are + one day and - the next. I had a + opk Monday, neg Tuesday and neg today. I did not O on Tuesday (the first neg day). RE said it is most common to O the day it turns negative, but that was a general guideline that many women differ from.

AF the cycle length- if your cycles have always been fairly regular length, I think you could use it as a guideline, but I'd be hesitant to rely on it if you're limiting BD, kwim? If you think about it, even if you were to theoretically O on CD16 every month, what is your body's CD16 would change a bit each month depending on when you started your AF (like, if your AF starts in the a.m that's almost an extra day vs. starting at night). My cycles aren't regular at all, tho, so I'm not speaking from personal experience here, just thinking out loud for you.

Best to you.