Is that the first dose? If it is don't worry too much just yet.
When I took picolax I got nothing until after the second dose and even then it wasn't for another 2-3 hours that things started moving.
Make sure you are drinking lots as this helps the picolax to work, if you aren't drinking enough it won't do its job as well.
I was on a 24hr fast before mine too.Just clear liquids.I agree with no RED jelly,or anything else red.
You can drink water, squash (not red) tea/coffee (no milk) lemonade, lucozade
You can have the lucozade original or orange flavours... The no red is because it can tint the lining of the gut and make it look like there is inflammation present