
When you train with Built For B, you're working with someone who understands your pregnant and postpartum body.
Every program is built around total body strength, core and pelvic floor connection, and a safe return to the lifting, running, and sport you love. Leaking, pressure, back pain, and diastasis are common. They are also workable.
WHY CHOOSE US
If you're feeling lost on how to keep training through pregnancy, or how to come back after baby, you're in the right place.
Pregnancy advice runs from “just do what you've always done” to “don't lift anything over 20 pounds.” Postpartum advice is often one line at your six-week checkup. Neither gives you much direction for what your body actually needs right now.
I'm Mary Brown. A Certified Athletic Trainer, Pregnancy & Postpartum Athleticism Coach, lifelong athlete, strength coach, and Nolan's mom. I found strength training in college, and my background in sports medicine eventually led me to specialize in pregnancy and postpartum fitness.
I was fortunate to have in-depth education before going through pregnancy and postpartum myself. Experiencing it firsthand made me realize this was the population I wanted to pour my energy into. Moms deserve individualized guidance, education, and strength training that meets them where they are, not more confusion or generic rules.
That's why I built Built for B: to help women feel strong, informed, and confident in their bodies through every phase of motherhood.
Every path starts with a free 15 minute discovery call. We'll talk about where you are, what you want, and decide what's best for you!
Individualized strength training built around you, your goals, and your season of motherhood. Train with me in my home gym or your own with programming tailored to your body, experience, and the life you want to live.
Personalized programming with the flexibility to train on your own. We’ll meet 1:1 to review your program, then you’ll train through my app with exercises tailored to your body, goals, equipment, and current season with support and check-ins along the way.
Get the individualized feel of personal training with the support of a small group. Train alongside 2–3 other women with coaching tailored to your goals, experience, and season of motherhood in a supportive and welcoming environment.
The Busy Mom Fitness Playbook: the four things I do when a planned day falls apart, plus my 10 minute nap time workout.

"I first reached out to Mary about 3 years postpartum for general fitness training, but with the goal of a second pregnancy. I just welcomed my second child after training with her for just shy of a year. Built for B programs are specialized, customizable and results-driven. I was able to remain strong, mobile + supported through my entire pregnancy with Mary’s expert support and guidance. Flexible scheduling, 1-on-1 instruction, and a trainer who feels more like a friend are just some of the reasons why I’d recommend Built for B."
- Leigh, mom of two
"Mary is knowledgeable, flexible and so easy to get along with. The tailored training and attention to detail on the specific challenges women face in pregnancy and postpartum have made my workout journey with Built for B second to none. If you're looking for a place to build strength and confidence look no further!"
- Kaylee, mom of two
Book a free 15 minute discovery call.
We'll talk about where you are, what you want, and decide what's best for you!
Or email: [email protected]