(Mishnah): How much is Kishuy (days of pain and blood before birth, during which we attribute blood to the birth)?

Answer #1 (R. Meir): It is even 40 or 50 days before.

Answer #2 (R. Yehudah): Her [last] month [of pregnancy] suffices).

Answer #3 (R. Yosi and R. Shimon): Kishuy is not more than two weeks.

Inference #1 (R. Yosah citing R. Va): This teaches that a woman gives birth after truncated months. If not, [R. Yehudah] should say 30 days!

Inference #2 (R. Yosah bei R. Bun citing R.Va): This teaches that a woman gives birth after full months, for [R. Yehudah] taught "her month suffices." (I.e. her last month is always full.)

Question (R. Yudan): Is [the law of Kishuy] only for a proper birth?

Answer: No - it is even for a miscarriage.

R. Mana: I heard in the name of Shmuel that recognizing the fetus is [just like] his birth (both require full months). I do not know from whom I heard this [in the name of Shmuel].

R. Ba bar Kohen, in front of R. Yosi: R. Yirmeyah said it.

R. Chizkiyah, in front of R. Yosi: R. Yirmeyah did not say it.

R. Yosi was upset [at R. Chizkiyah for saying so]. He told him, even Yehoshua, who was tied to Moshe, would not say so [that Moshe did not say something, for perhaps he said so when Yehoshua was not there], and you (R. Chizkiyah - you were not tied to R. Yirmeyah) say so (that R. Yirmeyah never said so)?!

[R. Chizkiyah] retracted and said "yes, he said so, [but not because he holds that this is the Halachah,] rather, like a man who heard a matter and challenged it. Does Aba bar Ba argue with his son Shmuel?!

(R. Berachiyah citing Shmuel): A woman gives birth after exactly 271, 272, 273 or 274 days [from the Bi'ah that led to conception].

R. Mana (to R. Berachiyah): From whom did Rebbi (i.e. you\) hear this? He said, from R. Ba.

Question: R. Ba contradicts himself! There, he said that recognizing the fetus is unlike his birth (birth does not require full months), and here he says so?!

(R. Ba bar Zutra citing Shmuel): [Hash-m told Chavah] "Harbeh Arbeh" (Bereishis 3:16). Whatever is in Harbeh (its Gematriya is 212, i.e. seven months, with three days for the semen to be absorbed), Arbeh (multiplying) applies to it (the baby can survive. We explained this like Bereishis Rabah 20:6, according to R. BECHAYEI on this verse.)

R. Chiya bar Ashi was sitting in front of Rav. He saw that he was alarmed. He asked him the reason.

[R. Chiya]: My donkey is pregnant, and it needs to give birth, and I must mate a male with it, lest it get cold;

[Rav] asked him "when did a male mate with it?" He said "on day Ploni." [Rav] calculated, and told him "it needs to wait more days [until it gives birth]";

Support (Beraisa): A donkey does not give birth in less than a lunar year, and not in more than a solar year.

Question: R. Yehoshua ben Levi's teaching argues [with the Beraisa]! R. Yehoshua ben Levi taught that the kingdom's bulls passed by and mated with [cows] of Rebbi's house. Some of them gave birth now (after incomplete months), and some gave birth after [much] time!

Answer: This refers to Tahor animals, and this refers to Tamei (the latter's time is not fixed. R. Yehoshua ben Levi does not argue with the Beraisa.)

Question: It says "ha'Yadata Es Ledes Ya'alei Sala Cholel Ayalos Tishmor; Tispor Yerachim Temalenah v'Yadata Es Lidtanah" (it has a fixed time, even though Ya'el is Tahor!)

Answer: A Tahor Chayah is like a Tamei Behemah. (Its time is fixed.)

Note: It seems that R. Chiya bar Aba asked this to Rav, who answered him. (PF)

R. Meir was concerned for Gitin (not to let a divorcee remarry within three months, lest her ex-husband say 'had I known that you are pregnant, I would not have divorced you [so your Get is mistaken, and invalid].' R. Yehudah was concerned for the child (lest there be a Safek about who is the father);

R. Yosi is concerned [only when there is concern] for Gitin and for the child.

If you will say that R. Meir is not concerned for Gitin, [the Mishnah] should teach that Arusos [who were widowed or divorced] may remarry immediately!

(R. Ze'orah citing R. Gedolah): One who does Mi'un need not wait three months [before remarrying]. One who is divorced must wait three months (even a minor, like the case of Mi'un).

This supports R. Meir, for R. Meir was concerned for Gitin.

(R. Ba citing Rav Aba bar Yirmeyah): One who was raped need not wait three months.

This supports R. Yosi, for R. Yosi is concerned [only when there is concern] for Gitin and for the child. (Gitin do not apply to rape.)