KarenLV

Can someone explain this to me? Why do some pregnancy calendars start at week 0 and others start at week 1? Which one is the correct one to believe?

anita665

I really don't know. This has confused me a lot too but the one's I've stuck to using are the babycentre.com ones or the one at ivillage.co.uk

Margerle

Those that start at week zero show you what to expect in the coming week, the ones that start at week one, are showing you what you are experiencing or just experienced.

I tend to like the former ones... I know what to expect then