Ask any woman about the experience of pregnancy, and aside from the morning sickness, the one part that's the most unbearable as the expectant mother goes from one trimester to another is the weight gain. First, is the telltale baby bump, then there's the swollen breasts, and in some cases, swollen ankles.

But the nose?

Ask Chrissy Teigen, who's currently carrying her second child with musician John Legend. Pregnancy nose is real. She discovered the effects of what the baby, due in June, is doing to her schnozz when posting a video selfie on Instagram, with the happy hubby whooping it up in the background. That moment of contentment turned to horror during the playback, which yielded a horrified caption, much to the amusement of some 2.1 million viewers who witnessed the facial transformation.

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Teigen then turned to Twitter to comment on the bulkiness of her beak, declaring that her nose has its own body-mass index, not to mention her mystification over how it blimped-out. Fortunately, a lot of other moms rushed to her virtual side, assuring her that the deformation wasn't unique. One mother declared that her nose swelled up to the point where she wondered if that body part would also have stretch marks.

Fortunately, doctors state pregnancy nose is not only common, it's also harmless. It's usually during the first trimester when the anomaly shows up as it's symptomatic of expanding blood vessels everywhere in the body that form to nourish the fetus. Antihistamines available over-the-counter can help alter nasal growth without any harm to the mother or baby.

For something that might seem so visibly obvious, there isn't very much on pregnancy nose, but then, much of the attention is usually diverted to the baby bump. And if Teigen is a typical mother, she stands to gain up to 30 pounds during the course of her pregnancy, according to the American College of Obstetricians and Gynecologists.

The organization broke it down to 1.5 lbs. dedicated to the placenta, 2 lbs. to breast tissue as well as equal weight to the uterus and amniotic fluid, 4 lbs. each to increasing blood volume and fluids in general and 7 lbs. to those areas where the mother would internally store fat, protein and nutrients. The remaining 7.5 lbs. is taken up by the baby.

Where the nose fits in that breakdown is a matter left to the experts. But Teigen and others will be reassured that chances of getting their photogenic look back once the baby is born are excellent, right down to the noses on their faces.

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