Repeating Surah Faatiha in Salaah

Q: One read more than the half of surah al Fatiha in the 1st rakah, then doubts whether he recited the beginning part correctly. If he re-starts from the place he doubts (and thus repeats a half or more of the whole surah) does he need to do Sajdah Sahw? Thus does repeating a half or more due to a doubt whether one recited correctly or not necessitate sajdah sahw, or does sajdah sahw become waajib only if one forgetfully repeats a half or more?

The name "Yaafi'"

Q: My son's name is Yaafi' Mohammed. I would like to request you to kindly give some advice about the name. I searched the internet and found the meaning of Yaafi' is honoured and a narrator of Hadith.

Labour pains

Q: Please give me some duaa's etc to recite during labour to ease the pains. Please make dua that Allah Ta'ala grants me a healthy and pious child.