worried po ako, pasagot naman po sa mga nakakaalam. thank you.

I just had sex with my man and we didn't realize na naputok niya sa loob yung semen niya pero napull naman niya. Ang problema, hindi kami sure kung may pumasok na sperm o wala. We aren't ready to have baby yet. I just finished my menstruation 3 days ago, and my fertilization is exactly 5 days from now. Is there any chance for me to get pregnant? Thank you po sa sasagot.