Women who don’t breastfeed find that their cycles resume very quickly – as early as 4-10 weeks after childbirth. But, if you meet the following 3 criteria, then your chances of ovulating are only about 2%:

* Your menses have not returned.
* You are fully or nearly fully breastfeeding.
* Your baby is less than six months old.

If you wanted to have a safe and natural method of contraception during these first 6 months, you could use the Lactational Amenorrhea Method (LAM), as described in TCOYF.