Mono/Mono Twins and First Pregnancy

Hi everyone! I had my first US at 6 weeks 5 days and the tech is almost positive they are mono/mono. As they are practically on top of each other. I have to go back on the 24th of April to get another scan because they couldn't rule out conjoined twins. This is my first pregnancy and I'm absolutely terrified but excited. I am currently 7 weeks and 3 days. Due date is November 12th.