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Originally Posted by lauren726  This will be my fourth attempt with an at home ICI. I think that I've been pretty accurate with timing, but I thought I'd ask here.
I got a +OPK yesterday (Monday) at 6pm, and again this morning at 9am. I have two vials, so my thought is to do one insem tonight sometime after 6, maybe around 10, and then again tomorrow morning around 7.
Does this timing sound right, or should I be doing the insems later? If ovulation occurs 24-36 hours after a +OPK, that would mean that I will probably ovulate sometime tomorrow morning, right?
Any advice would be helpful.
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It all depends on how many times you tested on Monday *before* you got the + and at what times. The first + is the only one that matters, so long as it was a true +
(I am well-known for jumping the gun on what is actually dark as or darker, unless you're doing the digital ones, which I'm always too cheap for.)
The important thing is that you can O 12 - 48 hours after the beginning of the LH surge, the most common being around 36 hours. (So by testing once a day, that's a pretty big range, and testing multiple times a day can narrow it.)
So, assuming you also tested at 9 AM Monday, and it was negative, that puts your surge somewhere between 9:00 AM and 6:00 PM.
The earliest you could ovulate is 9:00 PM Monday night.
(This is assuming a short, short, LH surge to O time (12 hours) and that you *just* missed the surge yesterday morning - I'm also assuming you tested, so if you didn't, adjust this. I.e. if you tested only once per day, move this calculation back.)
The latest would be 6:00 PM on Wednesday night.
(This is assuming a long, long LH surge to O time (48 hours) and that you *just* caught the surge yesterday evening.)
Based on that, I'd say you want to insem Tuesday ASAP, and Wednesday, I would aim for roughly 18 hours after Tuesday.
Based on your OPKs, I think the ideal time would have been Tuesday early morning, and Wednesday 24 hours later. It's too late for that, but I don't think you've missed your most likely window, I think you're coming up on that now. . .
GOOD LUCK!!!!
