| Genetic: |
- Peripheral blood karyotyping of both partners
|
| Uterine abnormalities: |
- Hysterosalpingogram
- Pelvic ultrasound
|
| Endocrine: |
- Luteal phase serum progesterone?
- Endometrial biopsy?
|
| Autoimmunity/Thromophilia: |
- Anticardiolipin antibody
- APTT or RVVT
- Factor V Leiden
|
| Age: |
- Cyle day 2, 3, or 4 serum FSH and estradiol levels
|