Baby Duggar Taking Breast Milk; Michelle May Face Risks  A
Uterus in (Too Much?) Use  Dr. Katharine Wenstrom, director of
Maternal Fetal Medicine at Vanderbilt Children's Hospital in
Nashville, Tenn., rattled off a list of complications, including
life-threatening bleeding during birth, risk of heart attack or
stroke -- all exacerbated by multiple pregnancies.  "She has an
increased risk of uterine atony, or failure, of the uterus to
contract after delivery, which can cause life-threatening blood
loss and may require hysterectomy," said Wenstrom, who added
that women who have multiple pregnancies are at risk for a
condition called placenta previa. In such cases, she said, "the
placenta implants over the cervix -- also associated with life
threatening bleeding."  Although it seems only time is limiting
the number of children that families like the Duggars can have,
doctors say each pregnancy actually scars the walls of the womb,
leaving limited real estate for a new pregnancy.  "Every time
you have a pregnancy