First ultrasound wasn’t what I thought but I’m keeping hope!

We went in today for our first ultrasound. They saw the gestational sac and the lining (ring around it) and said those things looked good but I was definitely not 8 weeks because they couldn’t find a yolk sac. There was a white spot in the middle of the gestational sac that he said might be something but it was too small to tell. I am sure of my LMP and I know when we BD’d before getting a positive hpt. There hasn’t been any significant bleeding but I’ve had cramps most of the time, a little stronger today but I’m super nervous and may be just focusing on them more. It seemed he was trying to prepare me for a MC but i still have hope! The best I can figure with my dates is if I ovulated late, I might be about 5 weeks fetal age. I know I got a positive hpt early and this was supposed to be 8 weeks which is still kinda early for a U/S. I’ve been scouring posts all day and just had to make one in case anyone had a similar story. I just don’t know what to think now. I don’t want to lose hope but I’m so scared. And my husband is actually being so sweet, I was worried he wasn’t the happiest that we got pregnant so soon but now he’s so sad at the thought we might not be. Doctor kept saying at least we know you’re fertile. :/ so we go back in two weeks because of course I’m out of town next week on the days the tech is working. I’ll keep you updated but here’s praying for a healthy baby who just wants to play some hide-and-seek!