5+2 weeks, only gestational sac

Jessica • Wife to a dreamy husband - Momma to a beautiful baby girl, an angel baby, and a baby on the way 😍

So last month I miscarried due to a blighted ovum. I got pregnant right away without trying, ive been getting blood work done every two days for the last week and my numbers have tripled each time but went in for an early us and only saw a gestational sac measuring exactly where it should for 5+2 weeks but was hoping to see more, ultrasound tech said it's completely normal but after my last pregnancy I'm scared to death it's the same .. can anyone ease my mind and give me some success stories.