I have irregular cycles, had very little blood & brown spotting on & off for 5 days, 24 days after last pd, now clear jelly-like discharge, no pd yet?

Anovulatory cycle. Irregular menses is very common in young women. Check out http://en.Wikipedia.Org/wiki/anovulatory_cycle for info re anovulatory cycle as cause of irregular menses. Hormonal birth control pills can be used to regular menses but they don't prevent sexually transmitted diseases. You'll need to make your partners wear condoms each & every time to lower infection risk. Take home pregnancy test if ?