2,085. Counting Clean Days While Ritually Unclean

Hilchos Issurei Biah 7:9

Let’s say that a woman gives birth to a girl and becomes pregnant again after her 14 impure days. If the blood of childbirth starts to flow (because of miscarriage) within her 80 days of pure blood, it is also considered pure blood. We don’t usually equate the blood that precedes miscarriage with the blood that precedes childbirth but here, any blood she sees during the pure days is pure until she has actual miscarriage; if she miscarries, then she will be rendered impure. If she miscarries a male, she will be impure as if she had given birth to a boy and if she miscarries a female, she will be impure as if she had given birth to a girl. She then counts her impure and pure days from the second birth, i.e., the miscarriage. If she was pregnant with twins and miscarried one, and she miscarried the other several days later, she counts her impure and pure days from the second miscarriage.

Hilchos Issurei Biah 7:10

If a zavah flow stops so that a woman starts counting her seven clean days, and then labor blood comes during her clean days, it doesn’t invalidate her counting. Rather, the days of bleeding count as part of those seven days. Similarly, if she gave birth in the middle of her seven clean days, the birth doesn’t invalidate her counting. Rather, the days of birth are counted in the seven days even though she is ritually unclean as per Leviticus 15:28, “If she is ritually clean from her zivah,” i.e., she may count so long as she is pure of her zivah even though she may be impure because of childbirth, niddah or tzaraas. Other forms of ritual impurity don’t invalidate her counting.