Cardi B's decision to file for a divorce was "a long time coming"

The source told PEOPLE: "She has two kids already, is pregnant and is also a working mom. She'd love to have a great marriage too, but since it's more of a distraction than support, she needs to end it."

People close to Cardi support her decision to end her marriage.

The source added: "It's been a long time coming.

"It's not just one issue. She's matured a lot. She knows exactly what she wants her life to look like. She's super focused on her kids and work."

Cardi already has Wave, two, and Kulture, six, with her estranged husband, and the rap star recently announced that she's expecting another child.

The 'Bodak Yellow' hitmaker - who has been married to Offset since 2017 - said in an Instagram post: "With every ending comes a new beginning! I am so grateful to have shared this season with you, you have brought me more love, more life and most of all renewed my power! Reminded me that I can have it all! You've reminded me that I never have to choose between life, love, and my passion! I love you so much and can not wait for you to witness what you helped me accomplish, what you pushed me to do! It's so much easier taking life's twists, turns and test laying down, but you, your brother and your sister have shown me why it's worth it to push through! (sic)"