Brown Spotting on day AF is due?!?!

[LizBeth89]

Ok so according to my cycle and cm I o'd on sept 17th I had bad cramping and back aches like my period on 8DPO then I started getting nauseous around the same time every night. Smells would make it worse. I threw up twice from smelling something. Once I was in target and the person in line nest to me was buying candy corn the smell was so sweet I lost my lunch and then another time I was walking down the medicine aisle and caught a wiff of menthol and had to run to the bathroom. I have had horrible heart burn and constipation. Boobs fuller and itchy. I started getting dizzy in the morning and blacked out yesterday morning oct 1st so I went to the doctor after that to have my blood drawn for HCG levels they said it sounded like I was pregnant and told me to go ahead and get prenatal vitamins just in case. This morning I wake up and AF is due but there is no blood HOWEVER there is a light brown discharge when I wipe. I cramped a little this morning but nothing like usual the first day of my period is always the worst flow and pain wise. It only comes out sometimes when I wipe. I'm so confused and have no idea what to think. Is this AF being tricky and extra evil or old implantation blood making its way out. Any one else have this happen?!? I have taken 23 test at 10dpo 11 dpo and 13dpo all negative. W ould appreciate some feed back from my TTC sisters Im dying here

 

[x-ginge-x]

It could be AF being naughty and starting as brown cm, but could also be late implantation bleeding, see if it comes full flow if not test again in a few days

 

[DCMum]

Brown blood is old blood. Your cervix is probably closing up tight (if you are pregnant) and a little bit of old blood is making its way down.
Brown spotting during pregnancy is usually no cause for alarm. Obviously, if you aren't pregnant, this could be a slow starting AF. Have you taken an HPT?