Ay sis, normal lang yan sa ganitong early stage, a few of us moms went through the same thing at 7-8 weeks and everything turned out fine, the baby just needed more time to show up sa ultrasound! Pero seryoso, please follow up with your OB regularly kasi they'll want to monitor you closely and repeat the ultrasound in a week or two to see the heartbeat, which is really reassuring once you see it. Maraming mums sa group namin na nag-worry sa same situation pero all ended up with healthy pregnancies, it's just the waiting game that's stressful, I get it. Sending you baby dust!