(Closed) When to test?

posted 5 years ago in TTC
Post # 3
170 posts
Blushing bee
  • Wedding: October 2009

If she got a positive OPK on the 18th, it is possible to not ovulate until 48 hours later (if at all, confirm with charting next month).  Maybe give it another day or 2, then test again.  Good luck!

Post # 4
1564 posts
Bumble bee
  • Wedding: August 2012

If she got a positive on the 18th, it’s possible she didn’t ovulate until the 19th or 20th. I have read that waiting to test until 14 DPO (days past ovulation) lessens the chance that there could be a false negative. This means that if you test earlier than 14DPO, it is still possible to get a negative and still be pregnant. However, if you get a negative at 14DPO it is likely to be a true negative (Most people don’t get their first positive until at least 13DPO). So it’s still possible. I believe 14DPO for your daughter could be Tues 4/2.

Post # 5
1285 posts
Bumble bee
  • Wedding: October 2011

I agree to test again in 2 days. If she already has a relationship with a MD on this topic, she may be able to get in for a blood test (especially if a HPT didn’t work for you).

Post # 6
4575 posts
Honey bee
  • Wedding: April 2012

Is your daughter temping? That usually can give you an idea on when to test.  Also, how long are her LP’s? That can also give you an idea of when to start testing.  If she already got a negative, then I would suggest either way for AF to show or get a blood work done.  GL

Post # 7
3378 posts
Sugar bee
  • Wedding: December 2011

From all I’ve read, irregularity of cycles has to do with differing timed ovulation – after that, the luteal phase is very regular, and usually ranges from 12-16 days.  Like others have said, she may not have ovulated until a day or two after the positive OPK.  If she hasn’t gotten her period (and still has elevated temps) 18 days after that positive result, I would think she’d have a really good chance of getting an accurate test result.  Also, just to be sure, she should test with first morning urine (so that her urine is more concentrated).

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