threatened miscarriage advice please

Long story short had brown bleeding the dark red bleeding went to the hospital everything with baby was perfect. However they labeled it as a threatened miscarriage which I guess they label it that when they can't figure out why you're bleeding. Doctor told me I can't tell you that you'll have a 100% perfect pregnancy but I think you're gonna be just fine. They do want me to follow up with my ob Monday to check levels. Has anyone had a threatened miscarriage and everything turn out fine?