Have been TTC for 4 cycles now. My cycle averages around 30 days (can be anywhere from 29 days to 32 days). This past month I had some spotting (red and only noticed when I used the bathroom) on days 27 and 28. I thought this might be implantation bleeding and had some cramping on day 27. I ended up getting my period on day 32. I never took a pregnancy test and did not track ovulation the past month so I wasn't sure when my period would start. Could this have been a chemical pregnancy?