With pregnancy, you definitely have to consult your doctor. You shouldn’t start new things while you’re pregnant, but if you’re someone that has been weightlifting, then absolutely people continue to lift throughout their pregnancy. Danni [co-founder of Lift] was teaching and lifting barbells while she was pregnant.
And if you’ve got back problems, even better, because weight training is a low-intensity exercise—you’re not jumping around. Everything is scalable, even to bodyweight, so no matter where you’re starting from, there’s an option for you.