Maci Bookout shared her first Instagram baby bump picture on Jan. 31. Credit: Theo Wargo/Getty Images

Two babies in one adorable picture! Teen Mom star Maci Bookout has remained relatively quiet on social media about her second pregnancy. But on Saturday, Jan. 31, there was no hiding her growing baby bump in a picture she posted on Instagram. 

"ridin' shotgun on our family fieldtrip! #nashville #arenacross," she captioned the aerial shot of her puppy Bonnie sitting in her lap. Wearing a gray shirt, Bookout's tummy was perfectly visible. 

A photo posted by ?? (@macideshanebookout) on Jan 31, 2015 at 9:39am PST

Just before the New Year, Us Weekly confirmed that Bookout, 23, was expecting her second child with boyfriend Taylor McKinney. She already shares son Bentley, 6, with ex Ryan Edwards

On Jan. 18, the reality star and her young son had quite the scare when she was in a serious car accident that overturned her Jeep. 

"Thanking God that Bentley and I were able to walk away from this nightmare with only a few bruises," she captioned a series of shots of her destroyed car. "Thanking God that my unborn baby girl is perfectly healthy after this. I'd also like to @JeepOfficial @Jeep because if our seatbelts and the roll cage had not done their job, I'm not sure my family and I would of had the same outcome. Thanks to everyone that stopped to help, that was huge. I pray everyone else involved is doing okay. #jeepwrangler #rolledthreetimes #terrifying #totaled #notmyfault."