What Are The Odds Of Getting Pregnant In The Tubs?

Are you asking about hydrotherapy? If yes then here is detail of this alternative therapy.
Hydrotherapy is used to treat many diseases including infertility in both male and female. Because it is believed that hydrotherapy affect following

1. Improves blood circulation
2. Reduces stress due to depression and anxiety
3. Refresh endocrine, digestive and circulatory systems

So, if your problem of infertility is depression or hormonal imbalance, then it might work.

I would say not to good of a chance because they say that it isn't good for the woman to have sex in a bathtub because your the man is forcing water, soap, and germs into the ladies vagina and this can cause problems but if sperm is released into the vagina more than likely most of it will be washed out but this applies to tub sex not sex in the shower this can be a pregnancy possibility. If you don't won't a pregnancy to happen Protection,protection,protection