Well i'm on mine this week and due to weigh in tomorrow, according to my scales this morning i've put 4lb on..i know if anything it'll only be water buy my god it is irritating lol xx
I've had a definate pattern to my losses. Despite not having 'proper' star week due to mirena coil, I still have some of the symptoms - sore boobs etc so I assume a bit of water retention too.
A STS the week before and a little gain 'that week' was not unusual for me, followed by a good loss the next week if I'd stuck to plan (which I pretty much did right through)