Threatened miscarriage???????

Tiana • 27 mommy of three beautiful girls 10 and 6 and 22 months
This morning I go to pee and there's blood son immediately I freak out and rush to the hospital because I've never had this happen with my other pregnancies. They do blood work and an ultrasound and everything is fine but they want me to get my levels checked again in 2 days. Has anyone else experienced this and had a healthy pregnancy afterwards?