Yosef Karo

“ Laws of Giving Birth on Shabbat
דיני יולדת בשבת
Paragraph 1 - A woman giving birth is treated as a dangerously ill person and Shabbat is desecrated for everything that she needs. We call a midwife from place to place. We help (her) give birth and light a candle for her, even if she is blind. In any event, that which can be done slightly differently is done differently. For example, if she needs an object brought to her, her friend can bring it tied to her hair, etc. ”

“ Paragraph 8 - If the infant was born after an eight-month pregnancy or after a pregnancy which may be either seven or eight months and he does not have grown hair or nails, it is forbidden to carry him. ”

“ Paragraph 4 - All three days [after childbirth] , even if she says that it is not necessary, we desecrate the Shabbat for her. From day three to day seven, if she says it isn't necessary, we don't desecrate. From seven on, even if she says it is necessary, we don't desecrate; rather, until day thirty, she is treated as a non-endangered sick person. ”