O contraceptive contraceptive may cause menstrual irregularity and that's probably why your menstruation comes briefly and goes away.
Injectable contraceptives, especially quarterly injections (take 1 injection every 3 months), cause irregular bleeds more often and this changes the pattern of your period compared to the previous period in which he used the injection.
In addition, the quarterly injectable contraceptive causes an important atrophy of the endometrium (inner layer of the uterus), which can cause absence of menstruation (amenorrhea), which is its main side effect.
All these changes in menstruation pattern are normal and expected from contraceptive injection. Even with these changes, the contraceptive effect remains active and therefore, you should continue to use the correct medication as indicated and on the marked day.
If you want, you can go through an appointment with your gynecologist, family doctor or general practitioner for an evaluation of other possible causes of this menstrual change.
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