Hi, I have my first scan next week and they have said I need a full bladder. Well I always need a wee and feel like my bladder is full! So I am just wondering how much I should drink and how soon before my scan should I start drinking it??? I dont want to end up desperate for the loo but at the same time I dont want to not drink enough/for the scan to be unclear. Im starting to fret about it a bit so if you could let me know your experiences I would be eternally grateful. Thankyou in advance.