That probably explains why positions of your outline looks that way. What looks like perfect and flawless in a graphics a program might get messed up whe imported into a font editor. The main culprit is the location of nodes and points Font editors hate floating points and move those floating points ton integer positions resulting to deformation in your outlines. Another is that open contours is fine in vector drawings but won’t do in a font. If you can draw directly, the better as what you draw is what you get.

I see instructions on what to do in illustrator to have a drawing that can be imported into Fontlab (and possibly other font editors as well) with hardly any problem. I believe you can find it through Google