I had sex for the first time about 3-4 days ago, and then the second time the night afterwards. But I didn't bleed during the intercourse, The day after I had slightly sharp pains when walking or sitting.Which I've been told is normal. But the day after that, to now I've been having to urinate somewhat frequently. (But I've been drinking a lot of water lately, cause I heard it helps the pain) But as I'm finishing urinating I start to get a stinging/burning sensation in my vaginal area and lower abdomen, and I have been spotting blood. My periods are never exactly on time, but I shouldn't be starting this months for bout a week. I'm not sure what to do, and I'm still a teenager, so my parents are out of the question unless I can just convince them to take me to my doctor so I can ask some questions without my parents knowing.