Weeks pregnant calculator?

[saucetastic]

I'm on my second and off to see GP in an hour, and can't for the google of me find a calculator for how many weeks pregnant i am according to my estimated due date.

Now this wouldn't have happened with my pfb!

Anyone know of a quick website?

Please ignore me. Found a good search term.

'backwards calculator'.

...nothing to see here...

hahahahaha!! :)

Blimey, there are hundreds of them! You're definitely pregnant.