Gush of blood

Stevonne
So I'm 6wks 4days pregnant, I had a miscarriage in January and D&C in January. I had brown spotting at 4wks 3days and my hcg levels where great my ultrasound at 6wks exactly showed fetal pole and heartbeat of 121. So yesterday at work while cleaning the office for the end of the school year I had a gush of blood that only lasted long enough to ruin my favorite pair of peach pants. By the time I made it home it was nothing. The doctor's office said to rest and let them know if I have any pain or start to bled enough to fill a pad. I have had nothing more then brown spotting ever since. I'm just scared I lost this baby too. I need help! 😢😢😢