I'm kinda freaking out

So I think I'm pregnant and nobody except my boyfriend, my mom and one of my friends knows. My mom keeps saying I should go through with it and either keep it or put it up for adoption (I'm literally only 18) and my boyfriend says I should get rid of it, but he feels bad for having that opinion. I definitely don't want to give birth at my age but it might do emotional/psychological damage (& cause physical pain) if I get rid of it at an abortion clinic, or medical abortion. I haven't taken a pregnancy test yet but I've been getting morning sickness, and cramps (I've been having weird dreams too, is that normal ?) and missed period by 52 days even tho I've been on birth control >.<

What should I do ??? I don't wanna have a kid at 18 ??? Help ???

Update: so I got a test and it came up positive... I'm not gonna worry about it until I see my doctor and if it ends up that I'm pregnant.. Well then, so be it. I'll figure out what to do from there. I'm scared but I'm trying to be mature about this. Thanks to everyone for the extremely helpful comments, they're really getting me through this tough time. ❤

2nd update: I dont know if anyone is gonna read this post 2 years later but- here it is if anyone is interested. I decided to go through with the pregnancy, but unfortunately I miscarried at about 7 weeks and had to have surgery to get the fetus removed. And with less important but still necessary info, me & that garbage boyfriend broke up, and I'm happier than ever with the man of my dreams 🥰