what is the difference between quasense and seasonale. I see the same strengths, but I was taking seasonale for 5 years, switched to jolessa for 1 year with no problems and now have moved to a different state and the generic is quasense and have taken it 4-5 months and suddenly, not at the correct time, my period has started and will not stop. I usually bleed with a period for 3-4 days max and I have been bleeding for two weeks.