Anyone else struggling with low HCG levels?

I had my first blood test after a faint line on ~13DPO, and HCG was 19.7. Doctor tested me two days later, and I was at 50.8. I went in yesterday at ~17DPO and was at 86.8. They’re testing me again on Monday to make sure my numbers are still going up. Today puts me right at 5 weeks, based on my last period. We did <a href="https://glowing.com/glow-fertility-program">IUI</a> on CD 18 (July 12th) and my cycle length average is 33 days (technical period start date would’ve been yesterday).

A nurse told me that they’re expecting to see it increase around 67% every two days, but it looks like everyone else is well over 100 at the end of week 4. I’m trying not to panic, but y’all know how that goes. Is anyone else dealing with this too?