what's hot around the web  Pregnancy Week by Week   baby
websites  you asked...  Q&A: Miscarriage risks?  Why do
miscarriages happen? Is there anything I can do to avoid it? How
do I know if I'm at risk?   The Bump Expert  Unfortunately,
there really is no way to prevent a first trimester miscarriage,
and it is the most frustrating thing about obstetrics. But,
after ultrasound confirms your baby’s heartbeat at eight weeks,
the risk of miscarriage is only about 3%. The risk falls even
lower (1%) after a normal ultrasound at 16 weeks. (Overall, from
conception, about 10 to 15% of pregnancies end in miscarriage.) 
Most pregnancy losses are diagnosed in the first trimester when
a patient experiences bleeding or cramping.  Many women may have
no symptoms that the pregnancy has stopped progressing until a
routine ultrasound examination indicates no heartbeat.  Most
miscarriages are caused by chromosomal abnormalities in the
pregnancy resulting from an error during fertilization.
Unfortunately, there is nothing you