Teen Mom OG fans are still learning about Amber Portwood’s new boyfriend — and baby daddy — Andrew Glennon. But it sounds like he’s going to be a good father.

“Andrew is very adamant on making sure that I’m eating nothing but fruits, veggies, meats and organic foods,” Portwood, who is two months pregnant with her second child, tells Us Weekly exclusively. But Indiana residents shouldn’t be surprised if they see the pregnant MTV star getting her Mexican fix at a popular fast food chain beloved by Chrissy Teigen and Katy Perry.

“I may or may not have had Taco Bell last night,” Portwood says. “I got a Nacho Supreme and Pintos N Cheese. It was horrible afterwards. My tummy was turning in every direction, but I was like, ‘You know what? I had to do it!’”

The 27-year-old has also been getting creative in her own kitchen, assembling sandwiches out of crackers, peanut butter, cheddar cheese and pickles. “Some people are probably going to be like, ‘ewww,’” she tells Us. “But when I first found out I was pregnant, I really had a craving for that. My brother made it up when we were young. It’s probably the weirdest craving I’ve had. That and chocolate milk.”

Earlier this month, Portwood confirmed exclusively to Us that she and Glennon are expecting their first child together. She met the cinematographer, 33, while she was filming Marriage Boot Camp with her ex-fiancé Matt Baier. The couple have been dating just four months, so Portwood was understandably uneasy about breaking her pregnancy news to her family.

“I was nervous,” she admits to Us. “Obviously it’s non-traditional. Usually parents want you to be married first and things like that. But you know me, if I didn’t do things the way I did, I wouldn’t be me.”

The 16 & Pregnant alum shares 8-year-old daughter Leah with her ex Gary Shirley.

For more of Us Weekly’s exclusive interview with Portwood, pick up the next issue, on newsstands Wednesday, November 8.