DH was out of town this week. I got a + OPK yesterday. DH got back today, so if we have sex tonight, that is still good timing isn't it? Or are you supposed to do it the day to get the +? It has been a while since TTC for us. I didn't do an OPK today since I was out of them and didn't want to buy a new box, so I'm not sure if I would have gotten another + today or not. DH and I will still do it tonight, just was wondering about the timing. Thanks!
Baby #1: 19 cycles, failed IUI, and 1 + IVF 3-5-07
Baby #2: 12 cycles, 1 failed FET, natural miracle but m/c at 9 weeks then another natural miracle that stuck! 9-30-09
TTC #3 - 4 cycles - no BFP yet!
Re: Sex timing question
As I understand it, and I'm far from the expert, OPK predict 2 most likely days to conceive. The first day is the day of the +, second is the next day. After that.....you have already ovulated and are unlikely to conceive. OPKs are far from perfect....but a little time with DH and you just might get lucky.
OPK's detect the surge in Lutenizing Hormone. Your LH surges right before your ovulation. So usually your first + will appear the day before you O. But LH is a pulsating hormone meaning it fluctuates throughout the day AND its hard to know if you caught it on the front or tail end of the surge. Sometimes O can be delayed - really it depends and is pretty individual. So the old saying goes, "when in doubt hump it out!"
Good luck!