Hi N, could that you just fertile, its that time of the month when your ready to concieve, just keep away from your man, till it goes unless you want to get pregnant.
The jelly like discharge is normal. This is especially true if you haven't had your period in an extended amount of time. The jelly like discharge consists of normal vaginal discharge and old blood that has semi-clotted. Seeing an gynecologist would help ease your worries about not menstruating on a regular basis. But if you are not having other symptoms to indicate infection like fever, pain or fatigue I wouldn't worry too much.