Pregnant

So about a month ago on November 12 my boyfriend and I went out with his sister and her husband to eat. (They have a baby) We were talking and her husband outa nowhere said “y’all are gonna have a baby too watch I hope y’all get pregnant. We know what you guys do when the door is closed”. Something along those lines. But that same day my boyfriend and I were talking and he asked me if I wanted to try and have a kid and I jokingly said yeah. We didn’t think anything would happen because he said his oldest brother and his wife had been trying for over a year and barely got pregnant so we thought it was a problem on his side of the family and we didn’t worry about it. I had a dollar store pregnancy test that I bought as a joke but I was two days late on my period and decided to use it just because. I saw two stripes and immediately thought it was broken because it was from the dollar store. The lines were super dark and I just couldn’t believe it. I then drive to Walgreens to buy another test. When I used it I saw a positive and I still couldn’t believe it. I texted my boyfriend and told him the news. I then told him I was going to planned parenthood and there they did a test and told me I was 4 weeks and 4 days along. (But it’s actually just 2 weeks) I’m 19. I don’t know how to tell my mom. My dad doesn’t like my boyfriend and I’m scared he might do something to him now that I’m pregnant. I’m scared I might get kicked out of my house. What do I do.