04/06/2018 14:25 EDT | Updated 04/06/2018 17:00 EDT

Kate Hudson Explains Social Media Absence With Pregnancy Announcement

The 38-year-old has two sons, and is expecting a daughter.

Congratulations are in order for Kate Hudson!

The 38-year-old actress is expecting her third child ― a girl ― with boyfriend Danny Fujikawa. She announced the news on Instagram Friday.

"SURPRISE!!! If you've wondered why I've been so absent on my social channels it's because I have never been more sick! It's was the most sick first trimester of all my children," Hudson wrote on Friday.

"Boomerangs have made me nauseous, Superzoom is an easy way to have my head in the toilet, food instagrams make me queezy and thinking too much about insta stories made me even more exhausted than I already had been," she added. "If you've seen me out and about smiling and pretending like everything is amazing ... I was lying!"

Hudson, whose mom is famed actress Goldie Hawn, posted a cute video revealing the sex of her third child. After she, Fujikawa and her two sons — Ryder, 14, and Bingham, 6 — pop balloons that reveal pink confetti, Hudson begins jumping up and down with joy.

A post shared by Kate Hudson (@katehudson) on

The actress added that she is feeling better and explained why she's kept her pregnancy a secret until now.

"We have been trying to keep this pregnancy under the radar for as long as possible but I'm a poppin now!" the actress said in the Instagram caption. "And it's too darn challenging to hide, and frankly hiding is more exhausting then just coming out with it! My kids, Danny, myself and the entire family are crazy excited! A little girl on the way."

Hudson and Fujikawa, a musician, were first linked together in March 2017 and later made their official red carpet debut in May of that year.

The actress said in an Instagram post celebrating their anniversary that the two have known each other for about 15 years.

J. Countess/WireImage
Kate Hudson and Danny Fujikawa at the 21st Annual Urbanworld Film Festival on September 23, 2017 in New York City.

Hudson had her two sons during past relationships. Ryder's father is musician Chris Robinson of The Black Crowes, who was married to Hudson for seven years. Bingham Hawn Bellamy's father is Matt Bellamy of the band Muse.