How likely is it to get pregnant after missing a pill?

[SillyBillyBee]

I missed one of the first few pills out of my new pack and 6/7 days later did the deed, anyone know the chances of falling pg in a situation like this?
TIA

Mmmmm, hard to say. The first few pills of a new pack are the worst to miss. 7 days later is before you ovulate on average, but sperm can last 4 or 5 days. Which takes you to day 12, on average you ovulate day 14 - so if you are Ms average you might be ok. But if you ovulate on Day 12......

Thanks for replying, thats what I don't understand, you are only meant to take precautions for 7 days. Oh I just don't get this pill-taking.