hCG Level Chart in Early Pregnancy

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hCG < 5mIU/ml is considered NOT pregnant

hCG >= 25mIU/ml is considered pregnant

hCG level doubles up every 48-72 hours during early pregnancy, it peaks at 8-11 gestational weeks, then declines from there to the birth.

Most popular sites give you a hCG chart like this one below: (this is in gestational weeks, e.g. 3 weeks = 3 weeks from last menstrual period = 1 week after ovulation or 1 week before period is due, in a textbook 28-day cycle period)

  • 3 weeks: 5 - 50 mIU/ml
  • 4 weeks: 5 - 426 mIU/ml
  • 5 weeks: 18 - 7,340 mIU/ml
  • 6 weeks: 1,080 - 56,500 mIU/ml
  • 7 - 8 weeks: 7, 650 - 229,000 mIU/ml
  • 9 - 12 weeks: 25,700 - 288,000 mIU/ml
  • 13 - 16 weeks: 13,300 - 254,000 mIU/ml
  • 17 - 24 weeks: 4,060 - 165,400 mIU/ml
  • 25 - 40 weeks: 3,640 - 117,000 mIU/ml
  • Non-pregnant females: <5.0 mIU/ml
  • Postmenopausal females: <9.5 mIU/ml

Do you notice that postmenopausal women can have hCG as high as 9.5mIU/ml? That is very close to some of the most sensitive HPTs (10mIU/ml) on the market these days.

Anyway, I am not satisfied with this sort of range of hCG level. I've been searching for a day-to-day break down level for ages. Finally tonight I came cross this organisation, who collects beta scores (the blood test that detects hCG levels) on early pregnancy from thousands of successful pregnancies. Here is the chart for successful single fetus pregnacy.

  • 10 DPO (Days Past Ovulation) - 16 mIU/ml (median level on all reported scores)
  • 11 DPO - 24
  • 12 DPO - 37
  • 13 DPO - 62
  • 14 DPO - 102
  • 15 DPO - 139
  • 16 DPO - 207
  • 17 DPO - 297
  • 18 DPO - 417
  • 19 DPO - 614
  • 20 DPO - 857
  • 21 DPO - 1248
  • 22 DPO - 1717
  • 23 DPO - 2439
  • 24 DPO - 3396
  • 25 DPO - 4285
  • 26 DPO - 5582
  • 27 DPO - 7128
  • 28 DPO - 9449
  • 29 DPO - 11487
  • 30 DPO - 15280

So if you want to test on 9 or 10 DPO, choose to buy HPT with sensitivity of 10 or 12.5 mIU/ml.

If you want to test on 11 or 12 DPO, HPT with 25mIU/ml sensitivity will do the job. (remember 25mIU/ml is the clinically recognised lowest level of being officially pregnant)

Some expensive brands from chemists have sensitivity of 50 mIU/ml. Suitable for testing from the period due date onwards. If you can score a + on these tests, you are definitely, positively, 100% officially pregnant. :). They strive for accuracy rather than early detection.

 

 

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