Couldn’t see gestational sac?

Elizabeth

So I went to get my first appt and this place is very old school and had a very old machine my mom said it’s the same type they used when she was pregnant with me 19 years ago. Anyway they did a vaginal scan but I’m only 4w1day based off my last period. They couldn’t see a gestational sac so he told me I could be early or it could be a early miscarriage and I’m so scared now. I went to get blood work and measure my hcg levels because he said if it’s not 1200-1500 of hcg he can’t see anything yet. So I’m just scared wanted to know if anyone had similar experiences or anything.