Today I had an appointment, got on the scale, and there was a full...I…

Today I had an appointment, got on the scale, and there was a full...I gained 1,800??in a week, and the doctor scared me. At first, I couldn't hear the baby's heartbeat, started asking about movements. But with the movements everything is good for me, just she only listened from the left side, then she found (of course, I panicked)??After that, I was already panicking, and my blood pressure rose, it was 150 something, then the doctor says, we measure one last time, if high, then to the hospital. After those words, everything normalized? Who at the later stages how much weight did they gain?