My husband and I are TTC. My period just started two days ago and it was three days late. It's been extremely light, like maybe a quarter inch of brownish blood on a panty liner. All the articles I've read say implantation bleeding should occur before your supposed to have your period. I'm just curious if anyone had a similar situation and found out they were pregnant later?. Also, I took a pregnancy test the day my period started and it was negative. I suppose I could wait it out for a few more days to see how things play out but man this waiting game sucks!!