Positive Mitzvah 100: Impurity after childbirth.
Leviticus 12:2 "When a woman conceives and gives birth..."

This impurity applies to a woman after she has given birth.

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Every person you meet has a wellspring deep inside, If you can't find it, the fault is yours. Remove the rust from your shovel, sharpen its blade, and dig harder and deeper.

From: Bringing Heaven Down to Earth by Tzvi Freeman - tzvif@aol.com