Gisele's baby Bundchen-in-the-oven is getting bigger by the day!

But she still manages to squeeze into skinny jeans just over a month away from her due date.

The model hasn't let her pregnancy slow her down one bit.

In fact, here she is with her helicopter instructor Stuart Matsumoto walking in Boston after having lunch.

Yep...that's right.

Gisele is learning to fly.

It sorta brings a whole new meaning to "baby on board."

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Don't Rain On Gisele Bundchen's Parade
Gisele's Baby Bump