How do I tell a guy I barely know I'm pregnant ?

I slept with a guy at the end of November, I am eighteen and it was both of our first times, he is eighteen too. We 100% used a condom. I got the usual symptoms of pregnancy like vomitting a lot, being sensitive to smells but I didn't think anything of it. Then I missed my period and I immediately panicked and thought about pregnancy. I took four tests and they were all positive. I cried for hours, I'm at university and I don't know what to do. I don't think I could go through with an abortion but this is going to ruin my life. My parents will freak out understandably. I realise I have to tell the father but I don't know how to. We barely know each other, I know it's my fault but I'm just going to face the consequences of my bad choices. What do I say to him ? I don't know where to do it, how to do it or what to say? I don't want to jeprodise his future aswell as mine ?