Gisele -- Considered Ditching Tom ... When He Knocked Up Ex-GF

So, how does a supermodel feel when she finds out the new hot guy she's dating knocked up his famous ex-girlfriend?

Well, for Gisele ... she claims she seriously thought about running away from Tom Brady when that exact situation happened in 2006 ... claiming it was a "challenging thing" ... but ultimately decided to give him a chance.

"It was a challenging thing because here I am, you know, thinking I'm dating this guy. We met, we started dating, everything is great and then this happens," Gisele told "CBS This Morning."

"So I felt like I didn’t know what to do. It was kind of one of those moments of like, do I just run away? And I think, you know, eight years later I couldn’t have asked for a sweeter bonus child."

Of course, Gisele and Tom eventually got married and had kids of their own -- Gisele says she fell in love with him because "he's a very kind man."

Gisele also talked about how they supported each other through the Deflategate drama -- saying, "I think we have been through a few tough times together. I think that’s when you know who are your friends and who loves you."

"I think no matter how challenging it was we’ve always been supportive of one another and I think that’s the most important thing you can have in life. You know, a support system and love."