Hi, Is there a minimum amount of time tha t a woman must be in Niddah after childbirth? Does it have anything to do with whether the baby was a boy or girl? Thank you.
Answer:
No, there is no minimum time for this.
The Torah discusses the time after birth that a woman is considered impure concerning entering the Mikdash, but for her husband the mother is pure as soon as she completes the purity cycle of 7 neki'im.
See Niddah 35b.