I really need advice.

Good day! Last September 8, I had my 1st ultrasound. The gestational sac only (no yolk sac) measured 5w5d, so the Sonologist suggested me to go back after 2 weeks. Btw, I'm supposed to be 6w0d that time based on my LMP. Fast forward, after 2 weeks I did my 2nd ultrasound but the gestational sac with yolk sac measures 6w1d only. I'm worried. Anyone whose same with me? 😞 #1stimemom #advicepls #firstbaby