Intial HCG level

Sam • Baby boy #1 March 20 2018💙💙,Baby boy #2 October 16 2020💙💙,Baby girl #3 May 3 2023💗💗 Baby girl #4 Due January 18 2025 💗💗

My levels were 81 at 3 weeks and 5 days I'm going tomorrow for my other blood test Im praying they doubled or more is 81 okay for 3 weeks and 5 days? I'll be 4 weeks tomorrow when I get my next blood draw i know the second draw matters more but still does it look promising? Ill update here on my second level draw