Couple Welcome13th son

In this photo provided by Jay Schwandt, his wife, Kateri Schwandt holds her baby boy Wednesday, May 13, 2015, in Grand Rapids, Mich. The couple who already had 12 sons have kept the all-male streak alive with the birth of boy No. 13 (Jay Schwandt via AP)

Couple 13th son

Holy smokes that’s alot of diapers! A Rockford couple welcomed their 13th child into the world this week.

What’s even more amazing, is that the fact that all 13 chidlren are boys.

Kateri Schwandt gave birth at 9:06 a.m. to an 8 pound 15 ounce boy who measured 22 inches long. Her husband Jay posted on Facebook:

Ok, so the boys know now! Good Morning America will air the “exclusive” reveal tomorrow morning so we had to be careful with some of it, but….. It’s a BOY! Now we need to choose a name! BLESSED beyond belief!

Baby #13 was due Saturday, but arrived four days late. The Schwandts struck to their tradition of not finding out in advance whether they were having a boy or girl.

In an appearance on “Good Morning America” earlier this month, Kateri said she assumed her 13th child would be a boy.

“I just assumed we’d have another boy because we know what we’re doing,” she said at the time.

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

The family made national headlines in August 2013 when Kateri gave birth to their 12th son. Their oldest son is now 22.

The odds of a couple having 13 sons in a row are about 1 in 8,000, according to CNN — roughly the same chances as those of having natural triplets.

Moreover, just having 13 kids is quite a feat. The average family size in the United States is 3.14 people, according to 2010 census data.

Will the Schwandts try for 14?

Kateri Schwandt's gave birth at 9:06 a.m. Wednesday to a boy weighing 8 pound 15 ounce boy and measuring 22 inches long. (May 13, 2015) (Photo: Jay Schwandt)

Kateri Schwandt’s gave birth at 9:06 a.m. Wednesday to a boy weighing 8 pound 15 ounce boy and measuring 22 inches long. (May 13, 2015)
(Photo: Jay Schwandt)