12/24/2015 12:23 EST | Updated 12/24/2015 12:59 EST

Chrissy Teigen's Baby's Gender Revealed In Instagram Post!

Chrissy Teigen and John Legend will be proud parents in 2016, and they've just revealed the baby's gender.

The Sports Illustrated swimsuit model announced that she's having a girl in an Instagram post that featured her cover shot for Vogue Thailand on Wednesday.

Teigen said in a caption that she and singer-songwriter Legend learned the baby's sex just minutes after the shot was taken.

The post came after Teigen announced she was three months pregnant in October.

Teigen said that she and Legend had been trying for a baby for some time.

"It hasn't been easy, but we kept trying because we can't wait to bring our first child into the world and grow our family," she said.

Teigen has kept busy throughout her pregnancy, spending plenty of time cooking through the holiday season, E! Online reported.

But she's feeling well, and Legend will "definitely be making a few baby songs," a source told the website.

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