Talk to Gynecologist on (Urgent) Accidental Pregnancy Solution

I am a housewife and I already have enough children but somehow due to some carelessness from my husband side I got pregnant again. I am mentally and physically not ready for this and also we can't afford it financially. I have discussed it with my husband and the only solution we could think is abortion. It's been 1 month to pregnancy so please tell me what should I do? how to abort with medication without surgery? I am in need please help me. We are very poor we can't afford this child.