A Jewish math professor from Brooklyn who sired 22 children over the past 18 years is a married man raising three children with his wife.

Ari Nagel, 40, who in last week’s New York Post said he provides his sperm for free — through intercourse or in a cup — to lesbian couples and single women looking to have a baby and who cannot afford the expense of a sperm bank, revealed on Sunday that he has been married for the past 12 years and has three children with his wife, ages 12, five and two.

In last week’s article, Nagel said he often produces the sperm in a men’s bathroom at Target or Starbucks, giving it to the recipient in a menstrual cup, who then immediately inserts it in the ladies room. Nagel attributed his success in helping women conceive to his high sperm count, coupled with his good looks and attractive personality.

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According to Nagel, a math professor at CUNY Kingsborough, his wife Roxanne knew about his extracurricular activities even if she wasn’t thrilled.

“She was never happy about all these other kids, but she tolerated it,” he told the Post after a reader who came upon the initial article said she was “devastated” by the article and “had no idea this was happening.”

Nagel did admit that his wife was “livid” and “yelling at me a lot” after the article was published but said that their marriage has been on the rocks for years and that they sleep in separate bedrooms.

The math professor said the two had a “complicated” marriage and that even as “she knew what was going on, she didn’t support it. She always wanted me to be a regular, traditional spouse.”

His wife Roxanne, reached outside her home by the Post, said: “I have nothing to say. What’s done is done.”

According to the report, Nagel is set to sire a 23rd child after impregnating another single mom, and has received additional requests in the “triple digits” for his sperm.

He said he’s heard from women “all over the world, places I never heard of. Almost all of them want to have a baby, but some want to hook up.”

Nagel said he was raised in an Orthodox Jewish family with six siblings, and through his sperm donations can have a lot of children and still sleep at night.

“I just love seeing how happy the moms and kids are … That’s why I do this. It’s the gift that keeps on giving,” he told the Post.

He said he babysits for some of the kids and attends birthday parties, and was present at some of the deliveries.

He has successfully been sued for child support five times and told the Post that half of his paycheck is garnished for child support. He told the newspaper that the women all promise in advance that they won’t sue.

He has kids in Florida, Illinois, Virginia, Connecticut and Israel, and said he does not regret any of them.