She’s almost ready to pop!

Jenelle Evans took to Instagram earlier today to share some super exciting news — the pregnant Teen Mom 2 star posted a photo of her growing baby bump and revealed she’s only one week away from her due date.

“39 weeks, seven day countdown has started!” she wrote in the caption on Instagram, adding a pink bow, baby bottle, and baby angel emoji.

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The mom-of-two — she shares seven-year-old Jace with her ex-boyfriend Andrew Lewis and two-year-old son Kaiser with ex-fiancé Nathan Griffith — is so excited to be welcoming a little girl soon. Even though this marks baby No. 3 for Jenelle, it will be the first child for her and her current fiancé, David Eason.

In 2015, Jenelle revealed to In Touch that as a mom of boys, she would love to try for a baby girl at some point in the future.

"I definitely want to try one more time for a little girl. But of course, that's not any time soon," she said at the time.

But her wish came true and she announced her pregnancy last August. David and Jenelle already picked out their daughter’s name — Ensley Jolie — and the couple celebrated together at a co-ed baby shower earlier this month complete with pink and gold balloons, pink rustic flower arrangements and tons of pink gift bags.

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At “the best baby shower ever,” Jenelle posed for a group photo and showed off her baby bump in a pink knee-length dress.

“It's awesome to have such a great group of friends that come from hours away to celebrate my new baby girl's arrival soon! Tonight was great and wouldn't want it any other way,” she wrote in the caption.

Scroll through the gallery below to see the Teen Mom 2 star's transformation below!