Britney Spears and Sam Asghari are expecting their first child together.

Spears, 40, announced the pregnancy on Monday, writing on Instagram how she thought she was "food pregnant" at first from her and Asghari's recent trip to Maui.

Spears said she "won't be going out as much" in order to prevent the paparazzi from "getting their money shot" of her body.

The singer, who shares sons Sean Preston, 16, and Jayden, 15, with ex-husband, Kevin Federline, also revealed she previously suffered from "perinatal depression" when she was pregnant.

A few hours later, Asghari shared his reaction. "Marriage and kids are a natural part of a strong relationship filled with love and respect," he captioned an illustration of two adult lions with their cub.

"Fatherhood is something i have always looked forward to and i don't take lightly. It is the most important job i will ever do."

The "Toxic" singer was freed from her conservatorship in December after 13 years.

Last June, Spears blasted her family and co-conservators for allegedly forcing her to have an IUD.

Spears said she wanted her IUD removed "so I could start trying to have another baby