My wife is 31 weeks in pregnancy feel very hot weather always in home. We are using air cooler right now to make her feel comfortable.; Is it right to take bath in cold water now?; Please reply. Thanks in advance.

Yes she can. Normal tap water is fine.

My mother in law feels since long time elders used to say that hot water is good for health of baby and mom. So she takes hot water particularly for hips. Is that needed?

If she has back or hip pain yes it's good to pour warm water. But to take bath not necessary.. To satisfy the elders she can pour warm water and then take bath in tap water.

Thanks rebecca