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It is quite common to have some bleeding or spotting up to 4 weeks after medical abortion
. As you are just 3 weeks pregnant the bleeding should be less. Do not worry . You should be back to normal in no time.
To confirm whether the abortion is complete or not, you need to get an Ultrasound
scan done. This should clear all your doubts. Meanwhile take good diet and plenty of fluids.
Wish you a healthy Life.