Most miscarriages usually occur in the first trimester of pregnancy. However a miscarriage at 19 weeks or in the second trimester has been known to happen. A miscarriage is the spontaneous loss of a baby up to the 20th week of pregnancy. Miscarriages that occur between the 12th and 19th weeks of pregnancy are called late miscarriages. A miscarriage is devastating - whenever it happens.
Miscarriages that occur between the fourth and sixth months of pregnancy are usually due to some problem with the mother rather than the fetus. Some of the reasons for a miscarriage when 19 weeks pregnant are outlined below:-
Miscarriage Causes
Chromosomal abnormalities: This is a more common cause for first trimester miscarriages but often the abnormalities go undetected and only come to light after a late miscarriage.
An incompetent cervix: This is one that is weaker and softer than a usual cervix. The weight of the growing fetus puts pressure on it and it may dilate and shorten before you reach full term. Doctors may (under anesthesia) put a stitch around the cervix to prevent this from happening. This procedure is called a cervical cerclage.
Prenatal tests: Chorionic villus sampling (CVS) is carried out between 10-12 weeks and amniocentesis between 15-18 weeks. Both these tests could cause miscarriages.
Placental abruption: This occurs when the placenta separates from the uterus before 40 weeks. Causes of this are unknown but it is more likely in mothers who smoke, drink or are on drugs. Older mothers are at risk too. Hypertensive mothers or expectant women who have met with an accident could face this as well.
Preterm rupture of Membranes: This happens when the amniotic sac breaks prematurely and the amniotic fluid leaks out. This has serious consequences as it hastens the delivery of a pre term baby who could face long term problems.
Other causes include infections, abdominal trauma, thrombophilia disorders, placenta previa, heart defects of the fetus and congenital birth defects.
Miscarriages are also possible after 19 weeks. A miscarriage that occurs after the 20th week is termed a still birth.
Bleeding is the most common sign of the miscarriage. Internal bleeding has been known to occur as well. This leads to the stomach bloating and shoulder pain. Vaginal pressure, low back pain, increased vaginal discharge, diarrhea, cramping or tightness in the stomach area; the passing of clots and frequent urination are other signs of a miscarriage at 19 weeks.