Pregnancy and contraception after weight loss surgery
Women are usually advised to avoid becoming pregnant during the period of most significant weight loss in the first 12 to 18 months after surgery.
This is because weight loss surgery can affect your vitamin and mineral levels. If your levels are low while you're pregnant, there's a risk it could harm your baby.
It's a good idea to:
use contraception until advised it's safe to become pregnant – ask your doctor about the best type, as some aren't suitable for women who've had weight loss surgery (including the contraceptive pill and contraceptive injection)
speak to your doctor if you become pregnant soon after surgery or you're planning a pregnancy at any stage after surgery – they can check your vitamin and mineral levels, and advise you about supplements (find out about vitamins and nutrition in pregnancy)
Help and support
Having weight loss surgery can be physically and emotionally draining.
Support will be provided as part of your follow-up, but you may also find it useful to talk with people who have also had weight loss surgery.
Ask your specialist about any charities and support groups in your area or check the WLS Info website.
When to get medical advice
In the days or weeks after surgery, call your GP or NHS 111 immediately if you have:
pain in your tummy that's really bad, doesn't go away or is getting worse
an unusually fast heartbeat
a high temperature (fever) of 38C (100.4F) or above