Hi. I have been diagnosed with an UTI but had sex tonight (silly i know) and now my vaginal lips are very swollen and sore. It also still hurtd when I urinate. Why is this? The boy came inside me also. I am on the pill but missed active pills on saturday and sunday so started again on Monday (yesterday) I also started a course of antibiotics this afternoon (2 tablets). Could I be pregnant? Thankyou so much.