Why does it say "Ivaled"?
Rashi, Devar Eliyahu: This is future. If only would be lost the day on which I will be born, and then I would not be born!
What is the significance of "veha'Laylah..."?
Rashi: Also the night of my conception, if only it did not exist! Devar Eliyahu - even though conception precedes birth, he mentioned the day of birth first, for day is more important than night, and birth is more important than conception 1 .
Ibn Ezra: If I was born at night, if only that night was lost! Horah is like Yulad - similarly, "va'Tahar Es Miryam" (Divrei ha'Yamim I, 4:17 means that she gave birth to Miryam 2 ). Day corresponds to the luminaries and legions above - they have no darkness, and night corresponds to the land and the moon, which has no light of its own, for it is below.
Devar Eliyahu: A Klal in astrology is that the Mazal is the same at the time of conception and at the time of birth. Chazal say that the day was Tish'ah b'Av. It turns out the pregnancy was 12 months; he cursed the Mazal of the day and night [of Tish'ah b'Av]. (NOTE: Different days of the year can have the same Mazal. Perhaps Tish'ah b'Av is an exception - no other day could have such a bad Mazal. However, was everyone born on Tish'ah b'Av conceived 12 months earlier?! Normally, pregnancy must be between six and nine months, so if a widow remarries after three months, we have no Safek about who is the father! - PF)
Surely the first "va'Tahar" of Hagar was only pregnancy! Over 20 times it says "va'Tahar... va'Teled"! What is his source that here, va'Tahar is birth? Perhaps he held that the verse would not mention birth before conception; refer to 3:3:2:1. Rather, also the Seifa refers to birth; refer to 6:17:1:2. (PF)
Did the night say "Horah Gever"?
Rashi #1: The verse is abbreviated. It means, the night on which the one who heralds said... Also "Im Yacharosh ba'Bekarim" means Im Yacharosh Adam ba'Bekarim.
Rashi #2, from Nidah 16b: The angel appointed over pregnancy is called Laylah.
