Scared

Went to the ER this morning for some pains . While I was waiting for a doctor I went to the bathroom only to notice I was bleeding . They did a ultrasound only to see a sac . I am 6 weeks 1 day pregnant . They told me I was measuring at 4 weeks 5 days pregnant . They also said my HCG levels were low . They were 1200. They doctors told me to come back & 48 hours to see if my levels increased . . . I feel like I lost the baby 😢😢 I'm so scared