http://www.babyornot.ch/

They have early ones too which are more senstive than anything you'll get in Migros or a chemist. If you buy the 5-pack, 10-pack etc, don't be put off with how they look, it's just the basic dipping paper minus all the rest of the useless plastic they put on the 25chf tests. Ovulation tests also available there. Delivery is quick (for the impatient ).