Q&A Get smart about your fertility. We've assembled a group of fertility-savvy health care practitioners to help. Fertility Health Trying Process Fertility Treatment Coping with Fertility Issues Miscarriage Question: What are the differences between Clomiphene (Clomid) and Letrozole (Femara)? Question: Do ovulation predictor kits (OPKs) work for everyone? Question: When does implantation occur? Question: Can you get pregnant from pre-ejaculatory fluid? Question: How long can sperm live in a woman’s body after ejaculation? Load More Send Us your question Name Email Message Send