There are 12 months in a year and you get paid every 2 weeks. So you might think “Oh that means I get paid 24 times a year”, since 2 weeks is about 1 month”. But that’s wrong because 2 weeks is not 1 month, it’s only 28 days. And biweekly pay actually results in 26 pays per month, not 24.

So you should be getting paid twice a month for about 10 months, and for 2 months in the year you’ll get 3 payments. For example, if you got paid January first, you’d also get paid on January 15th and January 29th. That’s 3 payments in a single month. That should happen twice a year.