If you’re trying to figure out how to use a pregnancy test strip, rest assured that you’ll learn everything you need to know about doing a pregnancy test at home. Pregnancy tests strips are excellent ...
During pregnancy, hCG (human chorionic gonadotropin) is released from cells in the placenta. The hormone circulates through the body, and it can be detected in blood and urine, says Maureen Baldwin, M ...
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How accurate are pregnancy tests?

Medically reviewed by Peter Weiss, MD Key Takeaways Many home pregnancy tests claim to be 99% accurate if used on the day of ...
In the first 4 weeks of pregnancy, your hCG levels typically double about every 2 to 3 days. If you’re at risk for miscarriage, you’re more likely to have hCG levels that don’t double or decrease.