Need help!!

Lasean

So I just downloaded this app to track my period & it’s says I’m 5 days late. I’ve been cramping but very gassssssy and barely pooping.. also nauseous. I had sex on my period last month in December and we didn’t use a condom but he said he pulled out... my period was already VERY Light and two days after i was suppose to be ovulating.. do you think I could be pregnant ? 🤨