Gaining

Because of the time of year and Your medium gaining speed. I think You should buy just a few pair in either a perfect comfortable fit OR barely loose. They just have to last a couple months. And it would be a good motivator to try to make them super tight by Labor Day!
What have you done For Swimwear? Any changes in the style? Some ladies go from bikini to Tankini to one piece. Others keep sporting the two piece!

You're welcome! You're a nice person and your progress is really coming along beautifully!