Hilary Duff
Hilary Duff opens up about her second pregnancy.Reuters

Former Disney star Hilary Duff is pregnant with her second child. The Younger star announced that she was expecting a princess of her own with her boyfriend Matthew Koma. The star recently revealed that she is having a hard pregnancy.

The 30-year-old took to Instagram and flaunted her baby bump in a bikini. Sharing the picture, she got real candid about her changing body and admitted that "pregnancy is hard."

"The boobs are big the belly is big the body is big. Man.. pregnancy is hard," Duff's mirror selfie caption read.

"Giving love to all mamas who make it look effortless... this journey is hard as hell and also incredibly special. Lovely to have a little life inside and to day dream of all the new adventures to come buuuut almost impossible to get my own shoes on... sick of getting up 9 times a night to pee and looking at this weird body in the mirror that is not my own at the moment," Duff continued.

"Women are so bad ass, this was just a note to remind myself and remind others how's strong and beautiful you are! WE GOT THIS!" Duff wrote.

Duff, who is already a mother of a six-year-old boy, Luca, from ex-husband Mike Comrie, announced that she's having another baby sometime last month. Her "Younger" co-star Sutton Foster told Entertainment Weekly recently that Hilary is doing great.

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"I just saw her in L.A. we had a summer party and she came over and she seemed so happy and I'm so excited for her," she revealed.

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Duff informed her fans about her pregnancy through an adorable photo on Instagram. The picture featured Koma with his arm around Duff, kissing her head, while she brought the attention to her growing belly.

"Guess what guys! @matthewkoma and I made a little princess of our own and we couldn't be more excited!!!!!!" Duff wrote.