Source
r/TryingForABaby•
EverySingleStar

New to temping and OPKs and need some help figuring out time to ovulation after a positive OPK.

I am TTC#2 but completely new to temping and OPKs. On Tuesday afternoon I had a negative OPK with a faint line (also after following a negative on Monday which had no line). Yesterday (Wed) I had a positive OPK. I read that ovulation should occur 12-48 hours following the first positive OPK. I just took my temp and it soared much higher than previous temps from the last week (when I started temping). I take this to mean I may have ovulated yesterday. I read it is possible to get a positive OPK on O day, but I thought I’d have more warning!!! That’s not even 12 hours it seems (I took test at 2pm, now my temp indicates I may have ovulated yesterday). What gives? I may be misinterpreting this and not doing my math correctly because it is 4am, but, is it possible to get an LH surge so close to O (keeping in mind negative OPKs on previous days) and for ovulation to occur less than 12 hours later?

Also given the information above should I be doing an OPK test in the morning and evening instead? I read doing it in the afternoon is best which is what I’ve done for several days.

Posted Oct 17, 2018, 8:29 AM UTC · edited

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hello_purple_turtle•

Have you tested just once a day at 2PM? It is possible that you would have tested positive that morning too, and it would be normal to possibly ovulate the same day.

3
EverySingleStarOP•

Yes, so far I’ve tested just once a day in the early afternoon. I may have to rethink that and maybe change it to morning and evening until I learn what my body tends to do. Now I just have to hope that the BD timing was ok! I was hoping to BD a day before O, but now it looks like it’ll be just O-2 and O.

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SigKapEA75229 | TTC#1 | Cycle 3•

O-2 and 0 is still great! And with OPK, I start with 1 on like CD 8 or 9, then switch to 2 when I start to see color on them (around CD 12 for me).

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developmentalbiologyMOD | 34 | TTA•

I actually think it’s really problematic that people say ovulation occurs “12-36 hours” after a positive OPK, because it implies a level of precision that we don’t have.

It is possible to ovulate the same day as a positive OPK, yes. It’s even possible, though less common, to ovulate before a positive OPK. Every body is different, although you’ll generally find some consistency in your own time to ovulation following a positive OPK.

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thechocolateisgone33 | TTC#2 | Cycle #5•

I don't know what this means for my surge timing, but I usually get positives solidly into the evening (like 8 pm) and/or from FMU. When I test during the hours they always recommend, they're always negative. It might take a few cycles for you to figure out your pattern. I usually get a positive the day before I O, but I've had one the day of too.

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sugarshop30 | TTC #1 | Cycle 11 | 1 CP•

Did you take your temp first thing upon waking up?

It is possible to ovulate the same day as a positive OPK. It has happened to me before. Sometimes people have a fast LH surge, then boom ovulation. I've also heard about doing OPKs in the afternoon, but doing them with FMU has worked well for me. Then, when I get a close-to-positive, I test again in the afternoon or early evening after holding for a few hours, and usually catch my positive then.

Good luck!

1