Pregnant?

So I was supposed to get my period on Sunday...on Saturday, I had a little spotting so I put on a pad thinking I was gonna get it but nothing, no more spotting till Sunday that I wiped myself, I had a pinkish spotting but not a lot & it went away right away & I have not gotten my period, the last period I got was on feb 16, but I get really bad cramps at times, usually at night, could I be pregnant? & I think I have a UTI right now too :/