Pausing endocrine therapy to have a baby

For some women, yes. A large international study followed young women with hormone-sensitive early breast cancer who paused their hormone tablets after at least a year and a half to two years of treatment to try to conceive, then restarted afterwards. Over the follow-up period so far, their chance of the cancer returning was similar to that expected for women who did not pause, and most were able to become pregnant. This has made a planned pause a realistic option to discuss, though it is not right for everyone.

How a planned pause usually works

Tablets are stopped, followed by a washout period of a few months so the drug leaves the body before conception. Women then try to conceive, with fertility help if needed, and restart hormone therapy after pregnancy and breastfeeding, completing the planned total years.

Who may be suitable

Younger women with early-stage hormone-sensitive breast cancer who have completed an initial period of hormone therapy and whose cancer risk is not too high. The decision depends heavily on the features of the cancer.

Who may not be suitable

Women with higher-risk cancers, those with metastatic disease, and situations where the oncologist feels the risk of pausing is too great. Some women with inherited gene changes need extra planning.

The study of planned pauses is very encouraging, and it has changed how oncologists talk with young women about pregnancy. It is still a single large study with a limited length of follow-up, and hormone-sensitive cancers can return many years later. Longer results will add more certainty over time.

Pregnancy itself does not appear to raise risk

Research on women who become pregnant after breast cancer has generally not shown that pregnancy increases the chance of recurrence, including for hormone-sensitive cancers.

Not every attempt succeeds

Some women do not conceive during the pause, particularly if fertility was affected by age or chemotherapy. Planning ahead with a fertility specialist gives the best chance.

The emotional stakes are high

Balancing a wish for a child against cancer worries can be very hard. Counselling and honest discussion with your partner and team help many women reach a decision they feel at peace with.

What this page cannot tell you

It cannot tell you whether pausing is safe for you. Ask your oncologist about your own cancer's risk.

In many Indian families, expectations about marriage and children can add pressure to an already difficult decision.

Your health comes first

A planned pause is a medical decision that should be based on your cancer's risk and your own wishes, not on pressure from others.

Involving your partner

Bringing your partner, and if helpful other family members, to an appointment helps them understand the risks, the timeline and why restarting treatment afterwards matters.

Other routes to parenthood

Adoption and, where legal and appropriate, other options exist. It can help to know these are possible whatever you decide.