"when i first got the shot i skipped my first period and then had really light periods after that for a few months. then my period started occurring more often. about 2 weeks of bleeding then 1 week off then bleed for 1 week then 1 week off or less then bleed for 2 weeks. really weird! that occurred for a couple months. then i started bleeding non stop for awhile. it was really light but who likes bleeding all the time. finally at about 1 year of sticking it out. i now am back to skipping the first period after getting the shot and sometimes skip the second or sometimes light spotting. i do bleed a little heavier just before my next shot is due. makes me think it&#039;s wearing of too soon. had no other side effects though."