My mother took me to our family doctor at around 7 weeks for the first sonography, and we could hear the tiny heartbeat! Going too early might not show anything and cause unnecessary worry, so wait for your doctor's call.
A sonography can confirm the gestational sac around 5-6 weeks, and the heartbeat by 7-8 weeks. Because of my thyroid issues, I was very regular with my doctor visits. Make sure you follow up with your doctor on time.
At my hospital, they scheduled my first dating scan exactly at 7 weeks to ensure they could hear the heartbeat clearly. It’s always best to call your hospital coordinator or gynac to ask when you should come in for your first ultrasound.
Usually, an early scan can detect the pregnancy sac around 5 to 6 weeks. Since I had a history of complications, my doctor advised not to delay the first scan. Please consult your gynac to know the right time for you.