6 weeks and 2 days at 79bpm ang rainbow baby

mga mommies worried lng ako. . Sbi kasi nila at this age ni baby dpt may heartbeat na malakas na pero c baby ko at 6 weeks and 2 days is 79bpm.. as per my OB possible maliit pa maxado c baby kaya d pa ganun naririnig ang heartbeat. . natatakot kc ako na may masamang mangyri saknya .. he/she is our rainbow baby.