I got this of this website: stages-in-pregnancy dot com/beta-levels-in-early-pregnancy dot html
I hope that this helps!
Beta Levels in Early Pregnancy and Beyond
Wks Prego/ Days after conception / HCG levels (mIU/hCG)
3 Weeks / 7 / 0 to 5
4 Weeks / 14 / 5 to 426
5 Weeks / 21 / 18 to 7340
6 Weeks / 28 / 1,080 to 56,500
7 to 8 Weeks / 35-42 / 7,650 to 229,000
9 to 12 Weeks / 49-70 / 25,700 to 288,000
13 to 16 Weeks / 77-100 / 13,300 to 254,000
17 to 24 Weeks / NA / 4,060 to 165,400
25 Weeks to Birth / NA / 3,640 to 117,000
4 to 6 Weeks Post Birth Less than 5
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