Yes ladies, its a weird topic nobody wants to talk about but I NEED your input, advice etc...

Bladder infections run in my family and I have just got 3 in the last month and a half. I've been seeing this guy for almosta year, and its never happened until now. Now I drink a lot of cranberry juice, pee (mostly) after sex-- then basically every time I develop a bladder infection. This last one happened while I'm still on antibiotics...! What do I do?!!!?