steam bath

Hi,
I am 44 and want to start to try and get pregnant. Maybe I am the optimist, but I don't see why not! My first child is 21. Anyway, I was wondering.....I have heard that hot baths are bad if you want to get pregnant. is there any truth to this, and is it ok to use the steam room? i like to use the steam room at the gym after swimming, which is almost every day.
thanks,
cyclo