Well you've cut down alot, thats good just keep going! I don't know why it was so easy for me... probably a combination of reasons. About your weight; If your doc isn't concerned and says you are healthy then I wouldn't worry! I know how you feel though.. I worry alot too, not about my weight really but I know that being pregnant (especially if it is your first time) there are ALOT of things to worry about!
Just call your doc for reassurance if you ever worry about anything! That is what they are for!