[raybbr]

It’s not unusual for women who have a healthy reproductive system and regular marital relations to conceive on the first ovulation after childbirth. This can happen they’re breastfeeding and ovulate two years later, and within weeks of delivery, if they don’t breastfeed.

Yep. My sister is one gestation period + one month older than me.

[Tax-chick]

I recall a nurse in one of the ob. practices mentioning how many women were pregnant already when they came for their 6 week post-partum checkup.