Hot baths

I have been taking hot baths because it’s the only place I am truly comfortable.. helps with the nausea and aching muscles (from chasing my toddler all day). I didn’t know I was not supposed to take a hot bath until my friend said it causes defects. I took them all the time when I was pregnant with my now, toddler (he is fine). I just thought saunas and hot tubs were a no no? Am I wrong? Anyone else take hot baths and everything is fine? I really need them.