I bled brown stuff for 1 day and I'm late 27 days on my period pregnancy test say I'm not pregnant I've also went to the hospital and they said I'm not pregnant from test through blood or urine I don't know what's wrong with me my lower back hurts like I'm going to start but nothing other than my 2 pregnancies I had this is the first time haven't started my period and I usually start every 28 days I have one ovary and my tube tied double knotted I hope it's not a pregnancy in my tube plz help