I started trying to lose weight last year because I wanted to be in shape before we started TTC this year. I lost 25 pounds and have gotten my BMI down to 21. I do the 21 day fix. It is awesome!! I have completely changed my lifestyle and it has been the best decision. You are absolutely doing the right thing. Trust me, I was overweight with my first pregnancy and it was just miserable. I didn't enjoy my pregnancy at all because I just felt fat. I'm excited to have a healthy pregnancy this time around. Good luck!!