OK, 3 weeks ago I had a savere UTI. I took antibiotics to get rid of it. It took 7 days to get rid of. 3 days after finishing my antibiotics I started my period. I'm used to a little brown discharge within a few days after my period but now it's been almost a week and its itching along with small amounts of brown discharge and it kind of has a small smell to it... can anyone give me some advice as to what it might be?

Sounds as though you may have a yeast infection. Certain antibiotics are notorious for giving women these nasty little infections.