TheSim

If you have enough to spare, test twice and everything I've read says that LH isn't synthesized into the urine until the afternoon so FMU (unlike when testing with HPT's) isn't the best urine to use. Some instructions say to test around 4PM. One month I didn't get my first positive until almost midnight and it was gone by 11AM the next day! I tested before BD'ing on a whim and if I hadn't I would have probably missed the surge if I hadn't tested at that time! I've bought IC's 50 at a time that are really cheap so I don't feel bad about using 2-3 a day.

poppy

I suppose it depends on how often you BD. If you are BDing pretty regularly, even if you don't catch your surge on your OPK, you will probably have enough of the spermy little guys in your system!

A positive OPK tells you that you are going to ovulate somewhere between 24 - 36 hours later (however, I have read elsewhere that it means anywhere between 7 and 36 hours). I suppose, like some people have said, you could test late and ovulate a couple of hours later. This month, I got my positive OPK on Sunday morning at around 9 o'clock, felt ov pains around about 9 at night, tested again in the morning and it was negative. So on that basis, I ovulated around 12 hours later from when I tested.

Like I mentioned, if you BD regularly round this period, you should be OK.

Best of luck Suz! Have your read our postings on stuff like vitamins and ttc? Do you use anything like B6 or Pregnacare?