We're at the airport Hotel waiting for our flight to Edinburgh and dd just got her first period and we're totally unprepared beyond a couple of pads she always carries in her bag. She's not comfortable so I want to get her period pants instead but order and wait for delivery, need to buy from a shop as soon as possible and have no idea where or what size would be right (she's in size 146/152cm clothes which i guess is around age 11/12 in uk child sizes), no idea if XS adult would fit or if there's somewhere that does pants in child sizes)
Any advice appreciated, don't want her first period to be miserable because I fucked up and didn't prepare, honestly thought we had more time and planned on searching for the right ones at leisure while in the UK