What happens if you call target when pregnant?

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I am currently about 10 weeks pregnant, and have lost 3 stone on SW since going in July. I plan to still follow the plan when pregnant, but if I fancy something a bit naughty, I'm not going to feel guilty about it. I'm about a stone away from target. I know if you are at target, you can go up or down by 3 lb, but is this the case if you are pregnant, as I'm sure I'll be putting on more than 3lb . Tia

You don't pay fees unless you're still out of target 6 weeks after the baby is born.