I also was the heaviest weight I've ever been on my wedding (and consequently honeymoon!). I'm not gonna lie, I sometimes look jealously at other peoples wedding photos at what I consider "healthy thin girls" and feel guilty and ugly that 200 pounds on a 5'1" frame is what I gave my husband. But you know what? For some crazy reason, he looked happy to see me walking down the aisle that day. He cried. And he married me, felt I was beautiful, and we had so much fun and even more on our honeymoon. We even had fun when we missed two hours of our wedding to go to the ER so I could get six stitches in my arm (real moral of this story is to always put all sharp objects down after cake cutting as to not slice your arm open).
And there are flipsides to being the "big bride". For one, I have so much confidence in my husband's love for me. He married me at my heaviest after all! No matter how my weight fluctuates, I don't panic about if he'd leave me or think me ugly...I already know. When it came time to start the journey I had a built in partner I could honestly believe when he said "I love you, no matter what". There are a lot of people that would love that security in knowing their spouse would marry them at their heaviest!
We are always our harshest critics, remember that. I'm sure the same wedding photos I look at and feel "fat" in, you would all think I looked pretty fantastic in, and my husband thought I looked pretty smoking in

. Don't look at yourself through the eyes of ugly, look through eyes of love.
Oh, and you can totally achieve your goals after getting married. Don't listen to anyone who says "marriage makes you fat" or whatever. I dropped sixty pounds after my wedding!