Following ex-girlfriend Kristen Stewart's infidelity, Robert Pattinson is reportedly considering a prenuptial agreement with fiancée FKA twigs before wedding.

Ever since Stewart cheated on him with her "Snow White and the Huntsman" director Rupert Sanders, Pattinson has apparently been struggling with trust issues.

"Robert has had his struggles trusting anyone," a source revealed to HollywoodLife.com. "It really knocked his confidence."

With that being said, "The Rover" actor is "putting serious consideration" into a prenup with the "Pendulum" singer before walking down the aisle.

"There's obviously a big difference in the wealth both Robert and FKA twigs have attained in their careers," the source continued. "Robert wants to be careful, just in case it doesn't work out."

The source added that Pattinson ultimately wants to protect himself from losing his estimated $100 million fortune in case of a possible divorce.

Meanwhile, the British couple has reportedly discussed having their first child together, though it looks like they won't be expecting a baby any time soon.

"They don't want kids for a few years," another source told HollywoodLife.com, explaining that Pattinson and FKA just "want to enjoy each other" and "neither of them is ready to be parents."

Consequently, the engaged pair told their family and close friends about "not being in a rush" to have kids, especially because they do not want to be pressured by them.

"They don't even want an accident to happen," the source added.

In addition, Pattinson is supposedly considering inviting his "Twlight" co-star Stewart to his wedding, since they "shared so much of their lives together" to superstardom.

An insider insisted, via HollywoodLife.com, that the actor holds no grudges against his former lover, who deceived him.

"For Rob now, there's no bad blood," the insider said. "He's moved on, and so has Kristen. It is time to look forward to the future."