Am I pregnant?

Jeleina

I am feeeling nauseous 3 days straight now. I don't know if it's hyperacidity or a pregnancy symptom. Cramps also feels different (brief lightning pain) than usual. We had sex at CM 14 and 16 (11 and 9 days ago). Next menstruation (hoping not🤞) forecast is 5 days from today. Thanks!