What can this be ?

dream

So I had my period March 23 to 28 the 28 I had unprotected sex ( semen was leaking out a little bit I also used pressed) March 31st when I wipe it was light pink blood with clear stuff April 2nd I had unprotected sex and used pressed again but on this app it say April 1 -7 is my fertile window but my ovulation day is on April 6th .. today April 5th I went to the bathroom at 6:30am and peeped when I wipe it was light pink on the tissue my period isn’t until April 20th am I experiencing implantation bleeding ? Or is it ovulation bleeding ?