It's been eighteen months since Jinger Duggar married Jeremy Vuolo, and to say a lot has changed in the reality star's life in that time would be to put it very mildly.

These days, Jinger is pregnant with her first child, and it seems she has every intention of following in her sisters' footsteps and raising a large family with husband Jeremy Vuolo.

But in many ways, Jinger is living a life that's very different from those of her siblings, and likely very different from the one her domineering father, Jim Bob Duggar, had envisioned for her.

Much has been made of Jinger's departures from her family's stringent code of conduct.

The most obvious way in which the 24-year-old has flouted her father's rules is by disregarding his famous dress code.

Yes, as you've likely heard, Jinger has been wearing pants.

That may not sound like a big deal, but after spending her entire childhood in mandated below-the-knee skirts, we imagine Jinger got quite a thrill out of slipping on her first pair of Levi's

Of course, that's not the only way in which Jinger has defied her upbringing and forged her own identity.

Jinger's parents have reportedly expressed concerns about everything from her decision to relocate to Laredo, Texas thethe fact that she was married to Vuolo for over a year before she announced her first pregnancy.

(It's not uncommon for Duggar daughters or women who marry into the family to conceive on their honeymoons.)

A former employee of the Duggars spoke with The Hollywood Gossip exclusively this week and revealed that Jinger's husband has encouraged her not to fear her father and to live a life that aligns with her own values, not Jim Bob's.

"Jinger, she's off on her own trip, and I'm kind of glad because she's been hemmed up so long for many years," the insider tells us.

"She just needed to spread her wings and realize that God still loves her and there is a life after all that seclusion."

Not surprisingly, rumors about Jim Bob clashing with Vuolo have been common over the course of the past year, and Vuolo likely knew that he was making a powerful enemy when he encouraged Jinger to break her father's rules.

But it seems Jeremy realized that Jinger could never be entirely happy living under her Jim Bob's thumb. 

"When you put someone in a bubble like that and they get out - she went rampant, totally rampant," says our source.

"Her husband said, 'This is the way it's going to be: I'm the boss of this family. You're not doing anything wrong by wearing pants or showing your arms.'"

The insider tells us that he still gets regular updates about the Vuolos from friends who live in Laredo, and he's pleased to report that Jinger has found happiness in her new life.

"I just worry about some of them kids," he tells us.

And our source has a prediction about which of Jim Bob's offspring will be next to rebel against their strict upbringing:

"Josiah's going to be the next one to bust out," he says.

We're sure that's something that many Duggar fans will eagerly look forward to.

Watch Counting On online for more on reality TV's most controversial family.