Definition - What does Chemical Pregnancy mean?
A chemical pregnancy is a very early miscarriage that occurs after a woman has tested positive for pregnancy, but before it can be seen on an ultrasound.
What a chemical pregnancy means medically is that the egg has been fertilized by a sperm but has failed to survive once fertilized.
FertilitySmarts explains Chemical Pregnancy
Chemical pregnancies are common in couples trying to conceive babies. In fact, they happen in 50 to 60% of first time pregnancies.
With a chemical pregnancy it is possible to test positive on a pregnancy test because the hormone that indicates pregnancy, human chorionic gonadotrophin (hCG), indicates that enough hormonal changes have occurred for them to be detected in your urine.
These typically occur before or around the fourth to fifth weeks of pregnancy and often occur undetected, until a woman takes another test and tests negative for pregnancy or goes for an ultrasound and no pregnancy is detected.