I'm the same! Huge and get so hungry especially between lunch and dinner! Taken to snacking badly and I'm overweight already so today bought some healthier snacks to have at the end of the day. Have a wedding to go to this weekend and not sure what I'll fit.
Bloat, definitely! I was in stretchy waistbands from around 6 weeks just because my belly was so bloated and uncomfortable - and massive! Even now (18+2) I'm still about 70% bloat, 30% bump. Don't panic, it does go down!
YES! Pretty much couldn't comfortably fit trousers day after BFP. Have gained half a stone at 11+2 (was maybe a little underweight to start), however I am smaller now and far less bloated than I was at the beginning but am in maternity jeans and elasticated waists! You may find it settles down a little congrats!