Sometimes in vitro fertilization cycles need to be canceled before egg retrieval for one of these reasons:
- Inadequate number of follicle developing
- Premature ovulation
- Too many follicles developing, creating a risk of ovarian hyperstimulation syndrome
- Other medical issues
If your cycle is canceled, your doctor might recommend changing medications or their doses to promote a better response during future in vitro fertilization cycles. Or you may be advised that you need an egg donor.