That's wonderful news, Mary. Congratulations. Is this your first? Grandchildren are just so special. Lots of knitting to do then. I, too, have an underactive thyroid which started when I was pregnant with my eldest (it's quite common for times of unsettled hormones to trigger it). the medication is supposed to take the place of what you would naturally produce but it is still incredibly difficult to lose weight. I also have fluid retention so have my tiddle tablets. I have been known to lose half a stone simply by being in bed for three days. Keep your feet up as often as you can, and when I say up, they should be level with your hips at the very least.