Okay so today I got my first positive OPK at CD 13....so now I think that means I'll O in 12-36 hours, right? Should I retest later this afternoon or am I good with this one positive? What will it mean if I retest and this afternoon it is negative?Sorry in advance! I'm new to this and it is my first month charting from CD 1...thanks in advance for any advice!
Re: Dumb OPK question
I would retest this afternoon, and tomorrow morning just to be safe.
You could get positives for up to 24 hours...
If you get a negative this afternoon, it would just mean that you caught your surge towards the end.
Also Peeonastick.com has some really great information and pics.
You can retest (I always do, to help with charting), but one positive is okay, too. Time to get BDing, mama!!!!
I agree with PP. I test for a few days after my first positive OPK. I usually get positives for 2 days.
Unrelated, but your dogs make me smile!
I helped do the initial start-up for 2 animal rescue organizations and one of them was a Great Dane rescue. I love me some puppies. 
** After 2 1/2 years of Unexplained IF, 2 failed medicated cycles, and 4 failed IUI's - our baby girl came to us through the miracle of Mini IVF! **
Falling in Love! November 2014