Quoting ~Brittany Lee~:" So I am joining a gym Friday but I don't have the extra $ for a trainer. I need to Lose 45lbs by July ... [snip!] ... how long should I work out for all together? So for you mamas who use the gym if you could answer for me that would be great."Before I got pregnant I went to a local gym. The PT there told me to start out slow and build myself up. He told me to try to work out at least an hour a day, mostly on cardio. I never stuck with one piece of equipment, I always changed it up. The ones I hated the most are the ones I used the most. I figured if I hated them so much they must be good for me. I hope to go back after I have my LO. Best of Luck!