What How Did That Happen?

Well today was weigh in day and I gained a pound. What is going on? I had a thyroid test done last week and I got the results back it is very low so now I'm wondering if that contributed to this gain. I had been following the program and exercising more than I had to and I still gained a pound, I'm so disappointed. I'm not giving up I upped my meds and hopefully it will help. Problem is it takes the meds some time to work. Well, I'll write more when they post the results. God has a plan and I need to be patient and do my part remembering He is in control.