UTI or pregnant

I've recently lost my virgininty about six months ago and haven't had a regular period since then. I barely have sex and when I do, its usually a day after my period or during my period with a condom. The condom has never broke. Recently, I started spotting brown and red and started having pain while urinating. I went to the doctor and found out that I had a UTI. During my UTI, there was a lot of bleeding and even after the pain went away, I continued spotting and eventually, I believe I went straight into my period. After my period, I was still spotting barely and figured it was my period slowly going away. I had sex twice after that soon after my period finished (while still) spotting and the condom NEVER broke. Now, I'm starting to bleed darker, and spot brown and lighter red, heavy enough to stain my underwear. Is it my UTI that hasn't completely recovered? or am I pregnant?

HELP please