I'd say maybe a 3c/4a. Your curls in the back seem looser than what is considered 4a by Andre's system. Typing is all based on perception anyway, and his system is so limited. There are a vast array curl types and textures in between, so don't focus too much on it. Also, it's hard to tell since the majority of your hair is straightened(relaxed, I'm assuming). If you still have relaxed pieces, you really won't know until it's cut off and when you have alittle bit of length. My texture has changed quite a few times since doing my big chop in '03.
I'd recommend looking through some of the albums in the 3c, and 4-types forum. You may be able to find someone with similar hair.
Welcome to the site, btw.
A wonderful mix of coils, curls, corkscrews, and kinks.