Heading into (hopefully!) our tenth transfer and had day 9 scan today - lining was only 6.2mm. Have doubled my oestrogen pills and back again for a further scan next Wednesday 
Kind of knew it would happen but also a bit disappointed and worried. Have only done a few FETs before (usually we're fresh) and lining has always been slow to thicken up- never had a successful FET. Has anyone else been in this position and it's worked out ok? AMD worried that either we'll be cancelled as lining doesn't thicken enough, or that it's sub optimal to take this long and the embryo won't take 