Hi. The last time I had sex was on June 11, 2014. I used a Durex Fetherlite condom. We had sex twice, using two separate condoms. After the sex my vagina was sore. Then it felt normal and okay.
The next day it still felt okay and normal. But then on June 13, 2014. I woke up at 5am because I had a strong urge to pee, but when I peed, not much came out. It also stung a little.

I have gone through UTI already. I'm just wondering, is this from the sex? Because the symptoms only started showing a day after the sex. What should I do about the UTI? Why did I get UTI?

I also took 4 pills (2 doses) of Nordette 6 days ago. Will taking antibiotics be dangerous? Or still effective?