Early Miscarriage: Blighted Ovum and Chemical PregnancyI remember hearing the terms blighted ovum and chemical pregnancy when I was suffering from recurrent miscarriage.
I never really knew quite what they meant and some of them sounded kind of scary...(i.e. why do they call it a "chemical" pregnancy? So I thought I would post this article for anyone interested:
How It Happens
A blighted ovum can be the result of chromosomal problems, Dr. Martinez says. In some cases, the egg or the sperm may be of poor quality. Although repeated miscarriages are emotionally traumatic, most fertility experts don't consider a woman to have a problem with miscarriage until she has had three or more consecutive losses. If this happens, a health care provider may order blood tests and genetic tests to find out what is causing the problem...
Many women also are plagued by another conception loss termed "chemical pregnancy."
A chemical pregnancy is the clinical term for a pregnancy that is confirmed by a pregnancy test, but not by clinical signs, and is lost before clinical signs can be observed through means such as an ultrasound. The pregnancy test is often "faintly" positive or blood hCg levels are low. It is believed that fertilization occurs, but that the egg never implants.
Using beta-hCg blood testing, a woman can test positive for pregnancy before even one day of a menstrual period is missed, usually 11 or 12 days after conception.