Hello, and I hope I can clarify this for you.
You are absolutely correct in the fact that the length of your cycle is related to when you ovulate... and your ovulation date is 14 days back from when you got your period, rather than counting 14 days from the start of your period. It is typical for most women to have a 14 day luteal phase, as you suggested. You absolutely may ovulate later in your cycle. I do not know how long you and your partner have tried to conceive before trying
Clomid. I would not recommend trying Clomid at all unless you have tried for a year (meaning unprotected sex at least 2-3 times per week) and not become pregnant.
A reproductive
endocrinologist is an appropriate referral if you have a history of
infertility for one year, and if you fail at least 3 cycles of Clomid. They can prescribe Clomid and combine it with
intrauterine insemination, which can increase the success rate. Even though you may have had a child together before, there can be an issue with the male partner too, and it would be advisable he get his
sperm count evaluated.
But you can still have conceived this cycle if you ovulated on the clomid, and continued to have unprotected sex at least a week after your ovultion kit showed positive. Your
progesterone level pre-ovulation is not relevant at all.
So- if you don't get a period by day 35 or so, do a
pregnancy test. And if you didn't conceive this cycle, a reproductive endocrinologist might be a better choice to manage your Clomid.
I hope this answered your question, and best of luck in getting pregnant.
Take care, Dr. Brown