Hi jessica,
Why don't you use Bio Degradabla nappies?
I bye these nappies from www.naturebotts.co.uk
If you bye two economy size boxes then delivery is also free to doorstep.
There is Moltex and Bambo, I bye the Bambo as you get more per pack.
I find them as good as the leading brands and better for baby's skin.
Its very economical and eco friendly.
They also do women's sanitary products.
Another kind of biodegradable nappies you can get is from Waitrose
which my friend uses.

hope this helps,
zulaikha