Hi, DD is 5mo and we're off on hols soon. I'd like to give her a bottle of expressed milk in the evenings so I can have a couple of drinks but wasn't sure which size teat I'll need. I've tried the odd bottle here and there which she takes fine but the teats were the ones provided with the bottles (newborn, I assume). Will a teat designed for a 5mo make the milk flow too fast for a bf baby? We're using tommee tippee bottles. Thanks