In just a few whirlwind Giants weeks, everything changed for J.J. McCarthy

When the call came there was no time to relocate the family, and so J.J.McCarthy quickly picked up, left the Minneapolis area and headed to New Jersey, leaving behind his wife, Katya, and their 1-year old son, Rome.That was Sept.

29.More than a month later, the Giants hit their bye week and McCarthy was reunited with his family.

Rome was walking — sort of — the last time J.J.saw him but is motoring around at a faster pace now.

Get texts from Paul Schwartz with all the latest Giants news and insights, exclusive to Sports+ subscribers.“I would say it was stumbling-slash-controlled falling when I left and now he’s walking backwards and showing off a little bit and running,’’ McCarthy told The Post after Wednesday’s practice.

“A lot has changed.It’s just amazing, the personality and how much they grow into their own sense of being.

It’s really cool.’’This was a big day for the 23-year old Giants quarterback.His wife and son officially moved into their New Jersey apartment and they will be together for the remainder of the season.As McCarthy prepares for his second start with his new team — his debut was sensational — and works toward keeping the Giants in first place in the NFC East, he believes having those closest to him now with him will make him an even more complete person, and player.“Tremendously,’’ he said.

“The true reason why you do it is for your loved ones.Obviously for the love of the game.

You want to strive for greatness every single day and all that, but every time you go home and you see your kid and you see your wife, you realize the bigger purpose.“I’m just so grateful to be able to come home and have food on the table, little things like that.’’The next task is an interesting one.The Giants (4-2-1) take a 13-game losing streak at Lincoln Financial Field into Sunday’s game against the sagging Eagles (2-6).

What a whirlwind it has been for McCarthy.He is 1-0 with his new team and was so impressi...