16 and pregnant confused.

k • Me & my fiancè are happily engaged and have been together for 2 years. Hopefully with a little bubba on the way. ♡.
I'm 16 and pregnant. Me and my partner are happily engaged and have been together for 2 years. But that's not the point. I'm getting periods as normal (Just late ones) & every time I take a pregnancy test after, I'm still pregnant. (If that makes sence). I'm to scared to go to the doctors, because I don't want to lose the baby if there is something bad. I don't know. ?.