SUBREDDIT: r/loseit
TITLE: 1200 cals a day & gymming 2-3 times a week but only losing 1lb a week. [F,5'8,138 lbs]
POST: Guilty as charged, I left getting in shape before my holiday a little later than planned. So I had 8 weeks with a goal of losing a stone which seems pretty reasonable,  right? 

Now I'm three weeks in and only 3 lbs down which I know is still a loss and any weight off is still great... But my target is thrown now and I'm getting frustrated with how slowly the weight is coming off. 

Am I wrong to think that I should be losing weight quicker, eating 1200 calories and going to the gym two to three times a week? If not, does anyone have any thoughts why progress is so slow and any ideas on how to speed it up?
TL;DR: 
Three weeks on 1200 calories, gym trips 2-3 times a week, only losing 1lb a week. Why and how to speed it up?