Bariatric surgery can produce a positive change in your fertility. Several studies have found that women with obesity-related fertility issues start ovulating regularly for the first time in years after having bariatric surgery. However, it is important to wait at least 12 months after surgery, and to be sure that your metabolism has stabilised, before trying to become pregnant.

Pregnancy after bariatric surgery is safe — after 12—24 months
After bariatric surgery, your body goes through some potentially stressful changes and significant nutritional upheaval, which can pose problems for a growing baby. To protect you and your baby from the risk of malnutrition, doctors recommend that women avoid pregnancy for 12—24 months after having bariatric surgery.
Long-acting contraception is strongly recommended
If you become pregnant
If you are planning to become pregnant after your post-surgery weight stabilises, it is highly recommended that you remain under the care of a multidisciplinary health care team. It is crucial that your take multivitamin and mineral supplements and that you are regularly monitored by a specialist for deficiencies.
REFERENCES:
- https://www.babycenter.com/0_seven-facts-about-pregnancy-after-weight-loss-surgery_1504874.bc?showAll=true
- Narayanan RP, SyedAA. Pregnancy Following Bariatric Surgery—Medical Complications and Management. OBES SURG (2016) 26:2523–2529
- Joël Schlatter. Oral Contraceptives after Bariatric Surgery. Obes Facts 2017;10:118–126
- Kominiarek MA. Preparing for and Managing a Pregnancy After Bariatric Surgery. Semin Perinatol. 2011 December ; 35(6): 356–361.