It seems to be working as intended. :D
The only issue is I haven't retooled the clothing system yet (aside from the wand, which will show a different one depending on what you have equipped). But I'll get to that when I start my playthrough.
I haven't implemented the uterus semen at all yet (artwork aside). That will probably be a new statistic. I don't currently have any plans on it contributing toward pregnancy chance, but do plan on it contributing toward flowback. Also, it won't wash away, but will likely be absorbed / flowback into the vagina rather quickly.