Thanks for the feedback!
Are you playing on Firefox? I recommend Chrome or Opera for the best performance as Firefox has a very noticable lag when playing videos, which you will notice especially after the end (and the start of new game +).
I'll address the player not switching to pregnant sprite next patch, basically the game only updates her sprite when she changes state (i.e from walking to shooting and such) so even if she got pregnant and big belly it won't show immediately.
For the bladder, there are no enemies that specifically fill up the bladder yet, I'm still thinking of what to make for that one.