It's been 16 days since I last had unprotected sex. (We did do it a Few more times that week during ovulation)  I have had what I think was a period that came 4 days earlier, but it didn't feel like my normal period. It was lighter for me (I'm normally heavy for the first day or 2) didn't have my normal cramping and my bleeding looked different (very red this time) could this of been Implantiation bleeding or was this just a wacky af Tia