Sounds like you have a vaginal infection. The greenish tint to your discharge is a sign that you need to be checked out by your doctor. a green tint (or bad smell, for future reference) is a sign that it is more than just a yeast infection. Also, antibiotics kill bacteria that keeps the low levels of yeast naturally found in your body from getting out of control. this makes it easier to get yeast infections (like the one on your leg). I'm really not sure about your missed period sweetie, but a trip to the doc will fix the first two problems!
Good Luck!
~H~
I also noticed yeast infection like rashes on my inner thighs. that was probably a reaction to the medicine. PLEASE HELP ANYONE!!