Okay so I have been trying to conceive the past 4 months... this month I used preseed ...in hopes it works.. I'm supposed to be due for AF today .. but I started spotting super light pink yesterday like twice .. only when I wiped.. so I figured my period is coming but normally I'm cramping and and my period is full blown towards the night and bright red!.. so I placed a pad last night and nothing on the pad but when I wiped the blood was tad bit darker but almost brownish!!.. And so I placed a pad again thinking AF is just being confusing today but no full on flow... I normally need to put a tampon because it's heavy... is it possible that this is implantation bleeding?? can it happen same time my period should be do?? Or my periods are just being weird?? ugh.. OH and I took a pregnancy test yesterday afternoon at it was negative!... what do you guys think..