HCG levels too high? Worried about multiples!

Dahlia • 🥑🥗

My HCG 3 days ago was 133 which I felt was low. Now I’m officially at 4 weeks and my HCG levels are 698. I also had an IUI. I’m now about 17 dpo. Are they too high or still within the normal range for a singleton? Appreciate the help and babydust to all!