on very rare occasions a different type of pregnancy can occur which results in loss.
Today we look at the different types of non viable pregnancies.
Complete molar pregnancy. An egg with no genetic information is fertilized by a sperm. The sperm grows on its own, but it can only become a lump of placental tissue (hence a positive pregnancy test). It cannot become a fetus. As this tissue grows, it looks like a cluster of grapes. This cluster of tissue can very rapidly fill the uterus.
Partial molar pregnancy. An egg is fertilized by two sperm. an abnormal embryo does begin to develop, it will quickly die because of the rapidly growing mass of abnormal tissue filling the uterus.
Molar pregnancy is assessed with a pelvic exam and ultrasound. The abnormal placenta mass will have a clustered, grape like appearance.
blighted ovum pregnancy
A blighted ovum means that a fertilized egg has attached itself to your uterine wall, but the embryo (baby) did not develop. Cells developed to form the placenta and the amniotic sac, but not the embryo itself.
While a positive pregnancy test detects the placenta hormones (not an actual baby), because is a blighted ovum, your body may display signs of pregnancy, and may actually sustain the growing placenta for a short time. You may not know you have a blighted ovum until an ultrasound confirms it, or you may miscarry naturally before an ultrasound is performed.
The fact that a blighted ovum does not result in a baby can be more devastating than any other kind of miscarriage.
An ectopic pregnancy is a complication of pregnancy in which the embryo implants outside the uterine cavity With rare exceptions, ectopic pregnancies are not viable. they are dangerous for the mother, since internal hemorrhage is a life-threatening complication. Most ectopic pregnancies occur in the Fallopian tube. implantation can also happen in the cervix, ovaries, and abdomen. An ectopic pregnancy is a medical emergency, and, if not treated properly, can lead to death.
In a normal pregnancy, the fertilized egg enters the uterus and settles into the uterine lining where it has plenty of room to divide and grow.