Courtesy Christina Aguilera
Summer is getting off to a bumpy start for Christina Aguilera.
The mom-to-be, 33, shared a selfie (ahem, bumpie) of her growing baby belly on Twitter over the weekend.
Aguilera is expecting a daughter with fiancé Matthew Rutler. The singer is already mom to 6-year-old son Max from her previous marriage to Jordan Bratman.
“I’m really excited to meet our baby girl,” she told PEOPLE earlier this month. “This has been a very easy and enjoyable pregnancy.”