jessebelle13 Member Joined Jul 29, 2015 Messages 8 Reaction score 0 Aug 3, 2015 #1 I'm on cd 17 and have had a positive opk on days 15, 16 and 17. How long does the surge usually last? I feel like this is unusually long....
I'm on cd 17 and have had a positive opk on days 15, 16 and 17. How long does the surge usually last? I feel like this is unusually long....
lisap2008 Well-Known Member Joined May 30, 2011 Messages 2,745 Reaction score 3 Aug 3, 2015 #2 With a big LH surge I often have positives for 2-3 days.