Tyler Baltierra's Instagram

'Teen Mom''s Catelynn Lowell And Tyler Baltierra Reveal Their Baby's Gender!

Will their bundle of joy be wearing blue or pink?

Catelynn Lowell and Tyler Baltierra unveiled their baby's sex in grand fashion: a gender reveal party with their nearest and dearest. And the "Teen Mom" couple, who are returning to MTV in 2015, will be dressing their precious bundle of joy in some undeniably cute pink onesies in the not-so-distant future.

That's right, it's a girl! Let the name brainstorming begin.

In addition to the celebration honoring the wee one on the way, the proud papa also shared a first peek of the lovebird's precious peanut, in the form of his fiancee's sonogram.

Tyler Baltierra's Instagram

"Can't wait to meet you and hold you and kiss you and smother you with love you little munchkin lol! #DaddyAlreadyLovesYou #MoreThanYouKnow," Ty captioned the Instagram photo above.

Meanwhile, along with an Instagram snapshot of her burgeoning 18-week bump, Catelynn recently posted that she is "excited" and looking forward to meeting their "little monkey."

And we're counting down (literally) until we can see the high school sweethearts cradle their newborn -- only 22 weeks, or roughly five months, to go. Offer your congrats on the couple's baby girl!