We told ya so.

Just as we reported all the way back on Jan. 18, Jessica Simpson is having a boy!

After playing coy about it, Jessica slipped on the gender of her baby on Jimmy Kimmel Wednesday, revealing that she and fiance Eric Johnson will be giving her now-10-month-old daughter Maxwell a little brother.

When Jimmy made reference to the baby, Jessica called her second pregnancy "totally different," marked by awful bouts of vomiting.