The tricky thing about body weight is that it's not the best indicator of body fat, you can weigh very little and still have a high body fat percentage. It's called skinny fat and it sounds like you have this problem if you have "bits of fat" you're not happy with at your low weight.
At 5'3"/104 pounds I'd say you have no weight to lose. I'm 5'4"/122 pounds and not looking to lose any weight. I have had people (people I trust to tell me the truth), tell me not to lose any weight because then I would be too skinny. I must have more muscle mass than you though.
The best way to combat being skinny fat is to strength train. Lifting heavy weights will help you achieve the results you are looking for. If you continue to eat fairly healthy and lift weights (upper and lower) 2x a week, practice pilates 2x a week and run 1-2x a week with some sprint training you should start to see some great results.
The amount of exercise seems fine, but I'm not sure that I agree with the structuring of your program.
The general recommendation for cardio is 30 mins 3 times per week as the minimum consistent with good health, and perhaps more frequently than that for weight loss.
Strength training should be part of any good workout program. Pilates is a good start, but generally not considered challenging enough to give you the benefits (including fat burning) of genuine strength training.
If it were me, I'd cut the pilates to just a couple of times a week, add another session of cardio, and add in strength training 2-3 times per week. Should be about the same time commitment as now.
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1 5/24/13 1:38 A
Hello, I am not terribly over weight (roughly 104 pounds and 5'3) but I am trying to lose a little weight, specifically in a little bit of the fat on my thighs and tummy. I eat fairly healthy (fruits, vegetables, meats, rarely any processed junk). I was wondering if I do pilates 30-45 mins a day 5-6 days a week & jog 20-30 mins as cardio excercise a couple times a week it'd help me lose weight? It doesn't seem like enough exercise to me because I know it's harder for me to lose weight since I am not that heavy in the first place.
If anyone can help me out it would be appreciated. Thanks.