What is the jelly-like substance that comes out of your vagina called?
is it part of urine?
explain why or why not.

Weird question but okay
 
It could be a yeast infection starting, it could be your ovulation days starting, your vaginal discharge will increase prior to ovulation.

If your period was unusual, you are not on birth control and had unprotected sex, did you take a pregnancy test? If not, maybe that's the first thing you might want to do. If negative, it should be fairly accurate since your period has been and gone. If positive, then your period was actually implantation bleeding and not your period

The female body naturally produces this jelly-like substance during fertile periods. It is natural and not indicative of disease, nor does it have an offensive odor. It is not part of the menstrual cycle, nor is it urine.