It's not uncommon to put on a bit at the start of cruise or to stay same. Reason is intro of veg, additional water in them and carbs associated. But it's the long term that matters - keep going, it'll keep dropping off, the real trick is keeping it off, so don't forget to do conso and the thereafter!
WW you don't have much to lose so it probably will be slow, Reena you're doing fine, both of you pretty good going, well done!