I managed to go on nightly walks a few times per week, but was too nauseous for much else. At almost 19 weeks, I now run 3 days a week
and weight train 3 days a week
. Simple circuits with free weights ie. curls, overhead press, seated rows, tri kickbacks and push ups for upper body, and squats, step ups with kick, deadlift, calf raises, and lunges for lower body. Generally 3 sets of 15 for everything. Limited to 20lbs as directed by midwife, but it feels good to stay fit!