opk - do you always ovulate?

Posted by Jody on April 30, 1999 at 17:05:31
I went to see my doctor last month for my pre-conception visit.  I told him I had been off the pill since December and had been charting my BBT.  He told me that I needed to use an ovulation predictor kit to determine when I ovulate.  I used one last month, and it changed on the 11th.  I kept charting my temps and they never rose.  I started the test again on the 18th and it still showed a color change much like the one on the 11th.  My temps rose on the 21st.  Is it possible, my body was ready to ovulate on the 11th, but for some reason didn't?  I think I must have ovulated on the 18th or 19th since I am a slow riser, or is it possible that it took 9 days for my temps to rise?  I guess my question is, how much faith can I put in the opks?  I hate to keep spending so much money on them each month if they are not working correctly.  I used one of the most popular brands.

Posted by hfhs.md.db on May 03, 1999 at 13:05:05
Ovulation prediction kits can be useful for predicting the LH surge that occurs ~24 hrs before ovulation in most women. BBT testing, as well-discussed in this forum, also gives good information.
I would suggest that you obtain several months worth of BBT/LH urinary data before drawing any definite conclusions about your cycles. It is important that there can be variability in the body's natural processes from month to month.