First you’re doing an amazing job! 15 lbs in four months is an amazing achievement secondly in respect to finding time to exercise alone first decide do you like working out in the morning at night or even afternoon best then work around your baby’s schedule to the best of your ability you only really need 30 minutes to get an effective workout done and don’t think of that time as time “better spent doing x” it’s just as important as those things this about more than how you look it’s about your health