HCG Levels Chart

During early pregnancy, one of the markers of your progress is HCG. HCG is short for human chorionic gonadotropin, and is a hormone which is produced in increasing amounts during your first 9-12 weeks. HCG is necessary to help line the uterus to make it a safe and comfortable place for the fetus to develop. After the first 9-12 weeks are over, the levels of HCG in the body drop once again, decreasingly gradually but steadily toward pre-pregnancy levels. Once you deliver, the HCG levels in your blood are undetectable.

There is a lot of concern over what "normal" HCG levels are. If you're looking for an HCG levels chart which will show you what to expect, then here you go:

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

LMP stands for "last menstrual period." Notice the broad range of values next to each time period. Also notice how much broader that range becomes as the weeks go on. By the time you reach 9-12 weeks pregnant and hit your peak level, there is a huge spread. These represent normal, healthy HCG levels. You don't have to be in the middle of the range. If your levels are particularly high or low, there may be a contributing factor (twins or multiples, or a problem with the pregnancy), but it is much likelier that you miscalculated the date of your conception or you just don't fall in the median.

As a rule, you can expect your HCG levels to double every 2-3 days during the early part of your pregnancy. This isn't set in stone—it applies to about 85 percent of pregnancies. If your HCG levels aren't increasing at this rate, or are holding steady or actually decreasing, it may indicate that something has gone wrong. A physician will probably order additional tests for you if this is the case. If your doctor is alarmed at how high or low your HCG levels are, you'll be given additional tests to find out the reason (which could turn out to be nothing). If your doctor is not concerned by your levels, they are probably within a completely reasonable threshold and you don't need to worry about them either.

When you're pregnant, you're going through a stressful time. You worry about your baby and your health, and it's easy to fixate on anything and everything which might tell you what's going on inside your body. HCG levels cannot tell you what's going on—they can only tell you whether you should have a closer look. HCG levels are a guide, but they don't reveal certainties—only other tests can do that, so don't put too much emphasis on them by themselves.