I am SO sore

Currently I am 5 feet and half an inch and I weigh 150lbs which is pretty big for someone my height (stressful times have cause me to gain about 30lbs). I hate that my boyfriend labels me as chubby and that I am having the HARDEST time conceiving and I hope it's due to my weight, therefore I have join a Bootcamp two days a week for an hour of intense weight training and holy crap am I ever sore! Now I just need to adjust my eating habits. But please share your success and how you did it to help motivate me! :)