So my period is 3 days late now . I have very regular 26 day periods . As shown in the pic , I had unprotected sex several days in what my app said was the ovulation period. Got a blood test last Tuesday about a week before my period was due a& it was negative . But have had a few faint positives then . But then yesterday I wiped and had a small amount of pink blood . And haven’t seen any since . Has any one had experience with this ? Testing negative for blood then being pregnant ? Could I have ovulated later or implanted later than normal ?Please please please help me.