Exercising and gaining weight is this normal?

Hello,

I've lost 85lbs in the last six months without exercise and been eating around 1500 to 1800 calories a day,I'm a 26yr old male 6ft 204lbs currently.I started working out and walking/jogging 3weeks ago to tone up and get in shape and have gained about 3 or 4lbs,only thing I've changed in my diet is on days I workout I take a pre workout supplament,I'm wondering is that much weight gain normal,again I'm not attempting to bulk up right now I want to get a toned body first.I need some info from people that know about this kind of thing as in a newbie to the workout/exercise game.

Please help.

Thanks..



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