If I took activated charcoal in the evening and had abdominal pain without vomiting and diarrhoea, could the vibin tablet I take in the morning be weakened?

Hello. Today, my fiancé and I loved each other without security around 6 p.m. Now it's before 22 and my stomach hurt because I ate something and took activated charcoal, there was no vomiting or diarrhea or am I still protected from pregnancy? (vibin tablet I take every day at 6 am currently I am on 4 tablet with new blister A tablets I take already 5 months)