NEED ANSWERS

Goodmorning po mga mommies, delayed po ako for 13 days na po yung last mens ko ay feb 19 then natapos ng 24. Then nung 28 same month may nangyare samin ng bf ko he did it inside of me pero nilabas ko lahat. Then on march 10 we did it again and on 11 but its withdrawal. I have my period tracker nung 28 ay safe days ko then nung 10 ay fertile then 11 ay safe ulit. Since last last week masakit na po yung dede ko pati din yun puson ko simula ng di pa ko nagkakaroon i bought a pt. It tested positive. Possible po ba yun knowing na isang beses lang po namin ipinutok at safe day pa? Thank you po