Hello everyone. Girls, I had something like this: I was taken to the h…

Hello everyone. Girls, I had something like this: I was taken to the hospital with brown discharge. Ultrasound showed only a gestational sac at 5-6 weeks, the embryo is not visible. Today it started bleeding red and hurts. I'm lying in the hospital, doctors offer vacuuming. I believe everything will be fine. But doubts creep up. Has anyone else had an embryo that wasn't visible at such a stage? And did someone lie on bed rest?