Hi. I'm A 21 Yr Old Female, And My Period

Hi. I'm a 21 yr old female, and my period just ended last Friday. Now, a week later, I just started having brown discharge, a tingling sensation in my area, and cramps. I've never had any issues with my periods in the past, at least no problems that happened a week after the period stopped. Is this just my body under stress, and the old blood finally coming out now, or could this be something else? I've never had sex, and I've never had any infection there. I already have a pap test this month, around the 25th, as my regular routine check up, but should I wait even just another week or two before getting it seen about? Is there anything home-wise that I can do to help lessen the discharge and cramps maybe before then, like drinking more water or the cranberry juice (if this could be a UTI, I've read these things help lessen it). I really don't want to make another appointment, because I don't have a day off in order to get seen until the 25th. Any help would be useful, thanks!