Hi there,

Clomid would be useful for you in your situation, due to the luteal phase defect. In cases like that, it is probably worth a try as it may be enough to help you to conceive within a few cycles. You are correct that it may affect the production of cervical mucus and thin the lining of the endometrium. It has however helped many women on here to achieve pregnancy so it may be the ticket for you. At least, if it doesn't work, you can go into FSH and HCG, knowing that you have tried everything else possible first.

Good luck,

Mel