Kinda Panicking

Well on Saturday I took 3 pregnancy tests and they came back positive. And then on Sunday I started bleeding, at first it was barely at all and a super duper light pink color. So I called my manager to come in and look (shout out to her idk many who would do that) and she said that some minor bleeding/spotting was normal especially in the first trimester. But as the night went on it kept getting darker in color and more and more. When my boyfriend and I got out from work at like 330am, it was way more blood and way more red then I was comfortable with so we got home quickly put some not work clothes on and went to the hospital. We were there almost 12 hours and they did a bunch of tests. They determined that the baby is possibly O+ blood when I’m O- so my body could have been creating antibodies that were attacking the baby. I’m not sure if I actually believe that because my boyfriend is also O- blood type but since I was told there was no harm to me or the baby if they were wrong on the blood type I took the shot. They weren’t able to pretty much tell me anything except some of the possibilities are a threatened miscarriage, or an ectopic pregnancy. They did ultrasounds, one internal and external, but they couldn’t see anything on them. However when they did a pelvic exam they confirmed that my cervix was in fact closed. Which I have been told is a really god sign. So they released me to go home and I was put on bed rest and I have a follow up appointment Thursday with a OBGYN, I’m terrified though because I’m worried they won’t be able to tell me much more then they did at the ER and I’ll be stuck waiting to know if the baby is okay. Does any one have any advice or anything that I can find comfort in? According to my last period which was January 6th I should be 6 weeks along.