(Photo Credit: Jay Schwandt via AP)

A Michigan mom has given birth to a baby boy – for the thirteenth time!

Jay and Kateri Schwandt welcomed their thirteenth son on Wednesday, four days after Kateri’s due date. The couple doesn’t have any girls.

Amazing Ultrasound Video Captures Unborn Baby Clapping

‘My Heart Just Melted’: Parents of OH Twins Born Holding Hands Describe Experience

The Schwandts kept up with their tradition of not learning the baby’s sex ahead of time.

They say they’re just happy that the baby is healthy.

The Associated Press reported:

Kateri Schwandt, 40, says she has a lot of experience with large families, as one of 14 children herself.

In an interview last week, she said she finds motherhood to be "very rewarding."

"Your children are a little piece of you. Every day is Mother's Day," she told The Grand Rapids Press. "They will bring me flowers that they pick in the yard. Even if it's a dandelion, it's special because they were thinking of Mom."

Woman Gives Birth on New York City Sidewalk While Trying to Hail a Cab

Pregnant Woman Goes to Courthouse to Pay Bill, Has the Baby Right There

Baby on Board: Utah Woman Gives Birth in Car on Side of Highway