Alison,

Welcome!

A later version of our software will offer the ability to start from scratch with a blank graph; I'm very sorry to say that we don't offer the ability to do that at the moment. For now, our software exclusively offers the ability to make patterns from digital images only.

That said, it's not impossible, and here's what you may want to do...if you have access to a computer. (It may also be possible to use a mobile device; I just don't know enough about mobile device graphics programs, as I personally do all graphics work on computer.) Using a computer, you could "draw" your pattern as boxes in a graphics program by using a transparent grid as only a guide, saving your work in a png or tif format, and then using the resulting image here either to output as a black and white cross stitch (for a square grid) or a filet pattern. (The filet pattern is technically for filet crochet, but as it depicts blank or filled squares, that should work for normal or bobble. And, like cross stitch, it's square.)

Hope that helps! If anything is unclear, please let me know, or if you have more questions. And if you do have computer access but not a graphics program, there are two excellent, powerful programs that are free and highly recommended.