Well last night b4 bed I went to the bathroom around 11 and looked down there was was a penny sized drop of brown and pink cm but my Cm was watery and sticky and then around 5am this morning I had EWCM after I went to the loo but AF is due jan 6 .. I have had bad back pains all morning I and cramping i usally have a 28 day cylce but last cycle I had a chemical pregnacy ?.. Could this be implantation bleeding that happened yest