Hcg levels not rising correctly

Chrissy

I'm 4 weeks pregnant my hcg level should be 450. It's at 320 the hcg level before that 267. They told me I have a 5 percent change ta a normal pregnancy. Anyone had this happen and it didn't turn into a miscarriage or an ectopic? I'm praying this baby is fine:( it's hard not having answers. So some reassurance with women who are going through the same thing but had a healthy pregnancy. Just would like more info