First US just yolk sac...Second US today

Had my first ultrasound at about 5 weeks and all we saw was the yolk sac. It was a bit unnerving and I know some ladies have posted about the same thing. I was worried and cautious and dreading my ultrasound today.
Just got back and we saw a growing baby! Measuring 7w5d and EDD 9/13. We were able to hear the heartbeat and get the bpm. So exciting.
I wanted to post this because I was so worried and thought maybe there was no baby because nothing was seen early on. I know I can't guarantee a positive second ultrasound for everyone but I just wanted to let you know that I had a positive experience when not much was seen in my first ultrasound.  I know saying not to worry is easier said that done ! Good luck ladies