Bleeding at 6weeks- anyone else?

Hi there!
​Yesterday I was just walking and felt suddenly a rush of liquid down there- went to the loo and there was red blood on my pants and more when I wiped. I didn't have anymore after that.  Went to hosp and I'm still pregnant and blood levels are fine (didn't measure hcg which is odd) 
​So not out the woods yet but anyone else had this and turned out okay?