louie,
I think not so much on contamination. But because mine is RU, so having full bladder will bring the cervix and uterus straight so that can insert the tube in to the uterus easier. Think something like that.
Yeah, the 3 IUIs are recommended by my 1st gynae. She mentioned it will increase our chances. So, we went for it lor. She is our 1st gynae. We do not know much. So, just follow her advices.
Later on, we went to other gynaes, and from them, we found that my hubby's sperm count is not that good and also that mine is RU.
Maybe she thinks we will be less stressed if we know less? I am still comfortable with her. But my hubby finds that she is not revealing enough information to us. So, we have stopped going to her. Partly also because her clinic is quite packed and sometimes we don't get a seat. So, we get stressed out when seeing her too.