Hello,
This can be the normal vaginal discharge if it is not itchy or foul smelling. Keep an eye on the discharge. If it becomes itchy, foul smelling or turns curd like, then you should get it evaluated from a gynecologist.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
Since you've come off the pill then that means that you now ovulate. During ovulation we produce a thick, some times egg white like discharge which is normal. Usually when the discharge is clear it doesn't really sound like a yeast or bacterial infection so I don't think it's an infection.
Because of this, I would say it's because you're ovulating - which usually happens round about where you are in your cycle just now.