Yes, I agree with Tickled, it looks like the classic bullseye rash. I would take more photographs and put a coin next to the rash if you can for size and/or a ruler. A newspaper with the date on it would help too in case you need some documentation.
I would also try to get Doxycycline ASAP. The sooner you take abx the better chances you have to get rid of of the lyme bacteria.
There is a sticky thread on top of this forum called "New to Lyme? Start Here!" and I suggest you start taking detox baths (warm water mixed with epsom salts and hydrogen peroxide) to start getting the poisons out.
Good luck to you!
Denise