Heartbeat at 5 week ultrasound?

Alison • Pregnant with baby #2 after weight loss surgery and depo! Baby Ellah Rae due 3/28/19 💗

I had an ultrasound today at 5 weeks 5 days (going by LMP) and they were unable to detect a heartbeat yet. The tech said this is totally normal but I still feel a wreck thinking we should have seen more! Any thoughts?