HCG levels

Makita

Hey I am 6 weeks pregnant and on Saturday I started bleeding and I went to the emergency room and they performed an ultrasound on me and they saw the baby with a heartbeat and a fetal Pole. They also did a blood test for my HCG level which was 7,000 close to 8000. I went to the doctor with Monday for a follow-up and they performed the HCG level blood test on me and I just found out my results hey drop to nearly 5,000. Is the signs of a miscarriage could I still be pregnant will I still have a healthy baby can someone help me?