Advice anyone ?

Hello Ladies I'm gonna give you some background information before I just hop in. This would be considered my 4th pregnancy. My daughter, who is also my oldest was supposed to be a twin but her father and I lost her twin around twelve weeks. Fast forwards to her birth, she born healthy and perfect. About 1.5 later I end up pregnant again and lost this one again around 12 weeks. About 3 months after that I ended up pregnant with my son. Now during that pregnancy my older twos father and I decided it would be best for everyone if we split up and be amazing coparents, which we've been able to do for nearly 2 years now. I've been with my current boyfriend for about a year and he's been with his current girlfriend about 8 months. I wanted to through all the extra information out there because at the beginning of the month I took a pregnancy test. But when I went to the ER the other day because I was having a lot of cramping and something just felt off these were the results I was given. Now the most I understand is that there is for sure one baby. I guess all i'm asking is for any and all advice. I'm so beyond thrilled but at the same time i'm terrified. I'll be so excited if it's twins or even one healthy baby. But has anyone ever had to go through something similar? Or does anyone understand what this means on the paper and can explain it better to me? I do have a follow up appointment with the ob on the 27th. So i'll make sure to keep everyone updated as well.