Pregnant Nicky Hilton looks ready to pop as she models a blue maxi dress in NYC... after enjoying her baby shower with sister Paris Hilton by her side

Pregnant socialite Nicky Hilton was seen in New York City on Monday.

The 38-year-old author looked ready to pop as her bump burst out from her long blue maxi dress with cute little white tassels in front. The color choice is perfect as she is expecting a baby boy.

This comes days after the beauty enjoyed her baby shower for her third child alongside husband of seven years, James Rothschild, 37, and older sister Paris Hilton.

Blue for a boy: Pregnant socialite Nicky Hilton was seen in New York City on Monday. The 38-year-old author looked ready to pop as her bump burst out from her long blue maxi dress with cute little white tassels in front

Blue for a boy: Pregnant socialite Nicky Hilton was seen in New York City on Monday. The 38-year-old author looked ready to pop as her bump burst out from her long blue maxi dress with cute little white tassels in front

Nicky's dress had a blue and white floral print and was sleeveless showing off her toned and tanned arms.

She carried a blue Hermes purse in the crook of her arm as she added blue tinted sunglasses. And she walked in brown sandals that had a narrow T strap over her foot.

The shoe designer's long blonde hair was pulled back and tied in a braid. She added pink lipstick for her day of errands around Manhattan.

A closer look: She carried a blue Hermes purse in the crook of her arm as she added blue tinted sunglasses. The shoe designer's long blonde hair was pulled back and tied in a braid. She added pink lipstick for her day of errands around Manhattan

A closer look: She carried a blue Hermes purse in the crook of her arm as she added blue tinted sunglasses. The shoe designer's long blonde hair was pulled back and tied in a braid. She added pink lipstick for her day of errands around Manhattan

This comes after her bash.

The party had a baby blue theme as Nicky and James are expecting a son. 

The fete was thrown by alice + olivia designer Stacey Bendet at a private residence in Manhattan.

Nicky's 41-year-old sister Paris Hilton was also at the event as she looked stunning in a floral print maxi dress with a cute pink cardigan.

She looks good in anything: Nicky's dress had a blue and white floral print and was sleeveless showing off her toned and tanned arms

She looks good in anything: Nicky's dress had a blue and white floral print and was sleeveless showing off her toned and tanned arms

Be beautiful in blue like Nicky this Cara Cara dress

A day after her baby shower festivities, Nicky steps out for errands dressed in a summery blue dress by Cara Cara. This glowing mama and socialite is looking radiant!

There's a lot going on with this dress... Firstly, the color is labeled "Spanish Tile Blue", which is fitting based on the intricate patterns throughout it. The hem has a layered and ruched look to it with a much darker blue hue. Another detail worth pointing out is the cut-out and tasseled accents at the bust. Bottom line... Nicky looks gorgeous in it and so can you.

Good news! You can pick up this dress at Maisonette for $395. Click through on the product image to shop it or to browse through the rest of the site.

Otherwise, you can further explore your options in the carousel and consider some picks by the likes of Neiman Marcus, Shein and more.

DailyMail.com may earn commission on sales from these product links

Nicky wrote in Instagram, 'Showered with so much love at baby boy’s sprinkle. Thank you @aliceandolivia, @tinachencraig & @parishilton for filling the room with my favorite people, sweets, treats and pregnancy cravings (hot tamales + dried mangoes). I loved every minute!'

The mother-to-be wore alice + olivia's Charlise dress in powder blue, a new color of the bridesmaids' dresses originally made for her sister Paris Hilton's fall 2021 nuptials.

Paris had on a pink floral dress with a pink cardigan that had a bow in front.

She added white framed sunglasses as well as pink framed sunglasses with her blonde hair down.  

Nicky is pregnant with her and husband Rothschild's third child - a sibling for daughters Lily-Grace, five, and four-year-old Teddy - and her parents have revealed they are delighted to have their first grandson on the way.

Shower time: This comes days after the beauty enjoyed her baby shower for her third child alongside husband of seven years, James Rothschild, 37

Shower time: This comes days after the beauty enjoyed her baby shower for her third child alongside husband of seven years, James Rothschild, 37

There she is! Nicky's sister Paris Hilton was also at the event as she looked stunning in a floral print maxi dress with a cute pink cardigan

Be beautiful in blue like Nicky this Cara Cara dress

A day after her baby shower festivities, Nicky steps out for errands dressed in a summery blue dress by Cara Cara. This glowing mama and socialite is looking radiant!

There's a lot going on with this dress... Firstly, the color is labeled "Spanish Tile Blue", which is fitting based on the intricate patterns throughout it. The hem has a layered and ruched look to it with a much darker blue hue. Another detail worth pointing out is the cut-out and tasseled accents at the bust. Bottom line... Nicky looks gorgeous in it and so can you.

Good news! You can pick up this dress at Maisonette for $395. Click through on the product image to shop it or to browse through the rest of the site.

Otherwise, you can further explore your options in the carousel and consider some picks by the likes of Neiman Marcus, Shein and more.

DailyMail.com may earn commission on sales from these product links

Kathy Hilton said: 'It's our first… grandson so we're very excited.'

Her husband, Richard Hilton, added to Extra last month: 'She is telling people, so I'm not speaking out of turn.'

Being pregnant hasn't made Nicky slow down at all.

Kathy added: 'She's great, working hard, you wouldn't know it but she's got the bump!'

So much to snack on: There were tea sandwiches and little slices of pizza as well as cheese balls

So much to snack on: There were tea sandwiches and little slices of pizza as well as cheese balls

Just a month ago, Nicky admitted her 'old-fashioned' mother was reluctant for her to find out the sex of her baby.

When asked directly about the sex of the baby, she said: 'I'm finding out soon, maybe. But my mom doesn't want to me to find out. My mom's very old fashioned. She's like, 'I didn't find out for any of you kids. Please, it's the ultimate surprise in life, do not find out. But we'll see.'

The businesswoman and shoe designer then went on to acknowledge that while she is feeling 'prepared' for the new baby - who is set to arrive in the summer - she still has to get nursery ready.

Thanks Stacey! The fete was thrown by alice + olivia designer Stacey Bendet, far right, at a private residence in Manhattan

Thanks Stacey! The fete was thrown by alice + olivia designer Stacey Bendet, far right, at a private residence in Manhattan

She already has two daughters: The socialite is happy to be expecting a sibling for daughters Lily-Grace, five, and four-year-old Teddy

She already has two daughters: The socialite is happy to be expecting a sibling for daughters Lily-Grace, five, and four-year-old Teddy

She said: 'I feel pretty prepared being that it is number three but I do have to start getting the room ready!'

Nicky has also previously spoken about the challenges of parenthood, acknowledging that 'patience and being the best version of yourself' have been the keys to her parenting style.

Speaking about her experience of motherhood, Nicky explained: 'I think all moms suffer from mom guilt. I think we could all do better at that and it's important to still do the things you love. Don't let your children completely take over your life. Navigate that balance and find that balance.'

Meanwhile... Paris was seen in Washington DC on Tuesday. She said on Instagram: 'So honored to be back in Washington DC to continue my advocacy work for the institutionalized youth in America,' she said on Instagram

Meanwhile... Paris was seen in Washington DC on Tuesday. She said on Instagram: 'So honored to be back in Washington DC to continue my advocacy work for the institutionalized youth in America,' she said on Instagram

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Nicky Hilton looks very pregnant in blue dress in New York City

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