I popped straight away. At 4 weeks and 2 days, on some pants i had to start leaving top button undone. Perhaps get some of those boob tube looking things that you where around your waist. I know they have a proper name, but can never think if it. I wear those with or without belly belts, depending on what i am wearing. Today, just the waist band, with top button undone.
Salt and Vinegar chips where my fav, along with choc chip cookies. And increase your water and fibre intake to help with the constipation. I have bran with weetbix for breakfast, but, i went about a week of just weetbix, and then gradually increased the bran to 1/3 a cup a day as well. Otherwise, you run the risk of spending all day on the toilet.
I used to gag doing my teeth as well - especially rinseing. Also did gag, and still do, taking my preg multi vitamins. Seeing someone else sick made me sick.
Oh, and ginger is good. ginger beer worked for me, i hate it, but it did the job. but just not to cold. The burping - well, forgetting the ginger beer advice - sometimes fizzy drinks cause it. I have it, not as bad now thankfully. I did find that nothing i ate or drunk effected the burps. I posted thread on it, and it was seemingly normal. Just annoying.