pregnant?

I'm nearly 15, I'm going through a lot of stuff at the moment with relationships and family and shit like that.
I've been sleeping with one guy who I don't necessarily think I truly have feelings for he just makes me feel comfortable I guess. Almost something to take my mind off. We have did it very weekend for the past 3 weeks (no protection) I am so stupid. I do not know what's going on in my head at the minute I am going to take a test next week to see if I am pregnant or not. But I just have that gut feeling I am. Let's just say this guy I've been at it with is not at all allowed near me and my family due to past problem s involving the law ... 
Like my parents will crack up so so much if they find out I am! 
I am seriously considering trying to hide the pregnancy if I am for as long as possible.WHAT DO I DO😭