Some women put on a stone, others put on 4 or 5. It's not a lot, 2-3 stone is perfectly normal & will be easy to lose afterwards, just count your calories & make sure you do as much cardio as you can fit in. I know plenty of women who've put on 3-4 stone & are now back to their size 10 selves within a few months so don't stress, easier said than done though I know!x