I didn't ovulate late that's for sure. I had sex Alot around my fertile week and ovulation but, I don't keep track of my cycles. According, to this app I was 5po at night (this happened on a Saturday)Iwent to the bathroom and wiped it was a good amount of light pink spotting and I wiped again nothing after that incident. I never had this happen to me before which is kinda strange. is this implantation bleeding? when can I test?