Can anyone help

[coljen]

and tell me why my crochet is wavey thank you.

[Antares]

I'm afraid you'll have to give us more information if you want us to help you. We don't know what you're doing, so we have no idea why your crochet is wavy.

Can you tell us what pattern you're making and, specifically, what rows/stitches you're having trouble with? You can post a few rows from the pattern--or provide a link to it if it's online.