What should the questioner do about the continued bleeding after receiving the last contraceptive injection, especially since she is going for 'Umrah and wishes to stop these problems?

If the blood discharge exceeds fifteen days, the woman is considered to have Istihada (non-menstrual vaginal bleeding), and she is permitted to perform Umrah. However, she must take precautions and perform ablution for every prayer after its time has begun. She should pray the obligatory and supererogatory prayers, and perform circumambulation with this ablution.