So here's the deal first off I'm new here so hiiii I'm a mom of 2 I'm 23 I was suppose to get my period the 30th and didn't two days ago after sex I started spotting its very light doesn't even feel up a pad and only really see it when I wipe its light pink and brownish. Any advice!? I usually will get a pretty heavy cycle every month. Also my pelvic and lower back are aching ALOT