Stuck!

I am now 28 weeks in and down 22.5 pounds. Started at 212, now 189.5. I have gone up and down between 187 and 189.5 for 6 weeks. Calorie intake is 1200-1300, lifting 3 days a week, swim one, walk 3. Protein 120g. Just can’t seem to get out of the 180’s. Not sure what else to do. I am on 10mg and will move up to 12.5mg on my next order. I keep thinking maybe the next dose will be the one.