Researcher.
I read a long post on another site that discussed this problem in detail. I had never heard it discussed here before. Those posters said that you should be careful to empty your bladder before sex, but you still might get some spurts or drips. They said that orgasm can cause a spurt. I am not far enough along to know much, but it has been my limited experience that it is true. Apparently it gets less as time goes by.