I did a trip to Primani today and bought two packs of their black full briefs for my hospital bag only to find out that they are too big and if I wear them I doubt they'd hold a maternity pad in place! Annoyingly their sizes go 10-12 and then 14-16 whereas I'm probably a 12-14. Should I just go for M&S or are there any other cheapie brands worth getting? Seems a waste to spend too much on pants that I'll just be chucking away.