"This is for everyone that has been asking for a belly pic!" she wrote, before sharing a serious message about teen pregnancy and waiting until the right time to have children.
"This pregnancy is so different than my first one! This time around, I'm prepared to take on the added responsibility, and I'm confident in my parenting abilities," she continued. "I can't stress enough how important it is to wait until you're ready to have children. Follow @CandiesOrg to learn more!"
Maci had her son Bentley in 2008 when she appeared on the Teen Mom predecessor, MTV's 16 & Pregnant. In May of last year, the reality star was honored by the Candie's Foundation for her efforts to help prevent teen pregnancy, which are largely done through her public speaking engagements.
Now, at 23 years old, Maci is in a more stable relationship and obviously feels more prepared for parenthood. Her baby girl is due in June and Maci has already revealed that her name will be, telling E! News last month, "It's Jayde and her middle name is Carter."
She also opened up in that interview about the fact that she doesn't have to worry about being judged this time around, since she's not 16 anymore. "It's a positive experience and I feel like I'm allowed to be happy and allowed to be excited," she told them. "Before, it was just negative. I wanted to hide from the world and not talk about it because I was only 16...It's been nice to be able to enjoy it."