Kate Hudson celebrated her last Mother's Day as a mother of two. The pregnant actress, 39, is currently expecting baby number three.

Hudson who is mother to Bingham Hawn Bellamy, 6, and Ryder Russell Robinson, 14, shared an adorable photo of herself and her two sons via Instagram.

This will also be Hudson's last year as a mother of only boys, as PEOPLE confirmed that she is pregnant with a girl. Hudson and boyfriend Danny Fujikawa announced their news on Instagram, with a sweet video that showed her boys popping balloons. The two brothers' popping released pink confetti, and this was the official gender reveal of their baby! Adorable!

Fujikawa and Hudson appeared to be an item in May of last year, but apparently they have been friends for over 15 years. Hudson explained on The Talk that they had met through mutual friends. In fact - he is her best friend's stepbrother.

Hudson clearly has a thing for musicians and she has not strayed from this preference with Fujikawa - he was the lead singer and guitarist for the band Chief. Her two sons, Ryder and Bingham, have rock star fathers as well. Ryder's dad is Chris Robinson, the lead singer for The Black Crows. Bingham shares his DNA with papa Matt Bellamy, who is the lead singer for Muse.

Hudson has not been shy about her desire to have more children. She told The Times that she was excited to start a family with Fujikawa and that having a girl "would be fun".

The actress went on to add that she really has not experienced any of her adult life without kids. She had her eldest when she was in her early 20's.

"I never had an adult life without kids," Hudson remarked. "My friends had their whole twenties -- they're all just getting pregnant now. But everything I've experienced has been great, albeit not conventional, including my childhood".

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Hudson's "unconventional childhood" was thanks in part to her famous mother, actress Goldie Hawn. She was raised with entertaining in her blood, and started out young with dance and acting lessons. Though she landed a TV role in 1996 on Party of Five, it was not until she portrayed Penny Lane in Almost Famous that Hudson really made her break into acting.

Hawn has been with her partner, Overboard star Kurt Russell, for over 30 years. Though not her father by blood, Kate considers him to be her dad. Her eldest son Ryder's middle name, Russell, is a tribute to the actor.

We can't wait to hear what she'll name her latest addition. What are your predictions? Let us know in the comments!

NEXT: KATE HUDSON IS PREGNANT WITH BABY NUMBER THREE