Could I be?

So, I have a yeast infection and it's one of the worst yet. I mean I get them usually if I am sweaty, but I haven't in a while. I also know my fiancé came In me the a couple weeks ago. I randomly woke up with a yeast infection the other day. Now I feel like slight pressure on my bladder too. I'm just wondering if I'm making things up or if it's a sign you know? I'm a 2weeks from my period and I took a test the other day but it was negative. Maybe I'm just crazy. But I also need to know if I should continue treating the yeast infection or what. It's almost gone so, please help?