Chrissy Teigen was undergoing IVF treatments during her 'Sports Illustrated' shoot

By Sarah Walker

Chrissy Teigen's most recent photo shoot for Sports Illustrated has an incredible back-story: the model revealed that she was undergoing IVF treatment in between shots. Never one to hide her struggles with fertility, the excited mom-to-be openly shared her unusual experience.

Chrissy described the difficult circumstances at the launch of SI's 2016 Swimsuit edition on Wednesday (Feb. 17). "I was doing IVF during the shoot," she told People Babies. "I was getting my shots and everything in Zanzibar, I had a little medical kit."

Chrissy Teigen and John Legend are expecting their first child. Photo: © Getty Images

Because the fertility treatment involves getting needles, the 30-year-old Lip Sync Battle host went on to say that makeup artists had to cover up the resulting bruises. "It was hard because you bloat from it, and you bruise – if I hit the wrong area."

Read more: Celebrities who are expecting babies in 2016

The good news for the brunette beauty and her husband, John Legend, is that the treatment was successful: they're currently pregnant with their first child, a daughter, who is due in early April.

Chrissy has been incredibly candid about her and John's longtime issues with infertility. When announcing her pregnancy, she thanked everyone for their support. "As many of you know, we’ve been trying to have a baby for a while now. 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. We’re so excited that it’s finally happening. Thank you for all your love and well wishes. I look forward to all the belly touching!"

Read More: Chrissy Teigen's maternity style

The happy couple made one of their last major red-carpet appearances before baby at the GRAMMY Awards on Feb. 15, just before the three special Sports Illustrated covers landed on newsstands, heralding Chrissy's seventh appearance in the magazine's coveted swimsuit issue. Taking a new path this year, the covers include UFC fighter Ronda Rousey and first-ever plus-size model Ashley Graham.

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