12 dpo spotting : ib or early af

Richa

Yesterday I had some cramps here and there then pink spotting once when I wiped which turned brown after sometime. Lasted few hours. Cm was milky white lotiony prior to that(sorry tmi). Today nothing. I have used preseed around the ovulation window. What could it be.. Implantation? Any similar experiences and how did it turn out for you? Waiting till day after tomorrow to test