Michelle and Jim Bob Duggar were planning for the birth of their 20th child, but People is now reporting that those plans have changed.

At a routine checkup today to find out the sex of their baby, the Duggars' doctor couldn't find a heartbeat and realized that Michelle had miscarried in her second trimester.

The TLC reality stars had already been picking out names. They say that once they learn the sex of the baby they will pick a name and then have a funeral service.

This is not the first time Michelle has miscarried. When she got pregnant for the second time she was on birth control and had a miscarriage, and from then on she and her husband left the number of children they would have "up to God." They had 18 more children.

She said that she and her family were heartbroken, and that it was a "real sad disappointment."