22 wks and scared I'm going to lose my baby...

I'm feeling sort of lost right now, so I wanted to see if anyone else has experienced anything similar. A couple of weeks ago I was diagnosed with placenta previa at my 20 week anatomy scan, and this morning I woke up with blood rushing through my pants. It seemed like a lot of blood to me since it went through my pants and dripped onto the floor. My husband immediately rushed me to the hospital and we were admitted pretty quickly. I spoke to so many different doctors and nurses that I feel confused about whether or not I should be worried since each person seemed to feel differently about the gravity of the situation. I stopped bleeding shortly after we arrived and they checked the baby and assured me that she's fine for now, but that I might have to "stay" if it happens again. My husband seems to think that they meant that she would be delivered if it happens again. Even if it's too early. Has anyone gone through this? How do I cope? I'm so terrified and everything feels risky now. I feel pressure every time I stand up and it makes me feel like something is wrong. What can I do to ensure I can make it at least until she can survive outside of the womb?

P.S. Sorry this is so disorganized. I'm a bit of a scatterbrain at the moment.