Heavy lower abdominal pain

Cheyenne

So around 3 this morning me and my fiance had sex and I started cramping so bad I couldn't walk. I had hot flashes so bad I laid outside in the cold trying to cool down I didn't have any bleeding at all. We went to the emergency room and they gave me a shot of morphine. The did a transvaginal ultrasound which was very painful. They said that nothing seemed to be wrong and it was a cyst on my right ovary. I've had cyst before and they have never hurt like this. I was told to not have sex or orgasm. Is this common in early pregnancy??? I've had previous miscarriages so in freaking out plus the doctor was very rude and told me this information when I was still asleep. Please any one I need some ease to my mind