Shedding the baby weight

Okay! I do not have an excuse anymore! Last year at this time I was doing so well and had got down to 150 when I started getting sick... well I had morning sickness! My life is very hectic; I work full time, married and have a little baby girl. I had to cancel my gym membership last year when I found out I was pregnant to put away that extra money. I do not have an excuse( I know I keep on saying that phrase) but really I do not. I have a dog, a bike, weights... I can still work out. Current weight: 175lbs, I would like to get to 150lb. Is it possible to do that by Christmas?? Let's see!