Hi, im knew to all of this and i dont know if im posting in the right place so please forgive me if im in the wrong room.

Im on the contraceptive pill but on the 3rd of this month i had sex without a condom, on the 4th of this month when i woke up in the morning i had really bad pains in my hips, back, tummy, ribs and they all felt bruised. I was in agony and i couldnt laugh, sneeze, cough because it hurt like hell, i was also of food too. My muk took me upto the hospital in the evening because the pain was getting worse. At the hospital the docter listened to my breathing and asked for me to do a water sample which i did. He checked it while i was there and said that there were traces of blood in my urine and that ive got a very bad water infection and a virus so he gave me some antibiotics and some anti-inflammatory to take. I didnt start taking the tablets till the 5th of this month first thing in the morning. I know that antibiotics can cancle the contraceptive pill but i read that it can cancle the contraceptive pill if i have been taking the contraceptive pill for 4-7 days before and that if that is the case that i may become pregnant. All day today i have had really bad pains in the lower part of my tummy and the pains feel like period pains but im not due on my next period for about another 2 and a half weeks. Could i be pregnant? please can someone help?