The effect last 3 months During this while u may hv irregular bleeding or none periods

The patient is usually amenorrhoeic for 3 months (12 weeks) after Inj Antara. So you should get your next period around 1st week of July 2022. After you stop taking Antara you may resume your normal period after three months. They may be irregular and scanty in some cases. However regular periods may take 8-9 months to establish.

Yeah there will be irregular spotting…effect last for 13 wks ..so u will get normal periods after that