Really? wow thanks, are you 100% sure? :P
Sperm doesn't cause cervical cancer even if it's passed in the conventional way.
Just about the only thing that can be spread in a bathtub is fungus, like athlete's foot.
hey annie thanks alot...does this even go for cervical cancer?
It would take a very peculiar set of circumstances for semen in the bathtub to cause any kind of issue, the water would have to be well water or some other source with no treatment, and it would have to be exactly at body temperature so the sperm would not die, and the water would have to be still there when the next person got into the tub (again the water would have had to stay at the proper body temperature the whole time). So, no, it's not possible that you caused a problem.
Don't worry about it! the bath water has Chlorine in it and sperm can't live in the water.