The How I Met Your Mother actress was recently photographed alongside her husband, Alexis Denisof and their daughter, Satyan, at a party in Malibu .
And photos showed what looked like an early pregnancy.
However, Hannigan took to Twitter to deny rumors.
“NO, I’m not pregnant! I just ate too much carnival food, that time of the month, hurt my back & couldn’t suck my gut in, & need 2 do cardio,” she wrote, adding, “And I’m NEVER gonna wear that shirt again!!!”
Alyson gave birth to her first daughter Satyan on March 24, 2009 , the day of his 35th birthday.