My wife is pregnant for 20 days. How could we abort this.

See a doctor, they'll give you the best information and help you make a well informed decision that is safe for the mother.

The main types of abortion during the first trimester are:

Methotrexate & Misoprostol (MTX): a medical abortion procedure used up to the first seven weeks of pregnancy. This medication combination is not as commonly used in the U.S. with the availability of mifepristone, which works more effectively for this use.

Mifepristone and Misoprostol: a medical abortion procedure used up to the first seven to nine weeks of pregnancy. It can also be referred to as RU-486, the abortion pill and Mifeprex.

Manual Vacuum Aspiration (MVA): a procedure used as early as 3 -12 weeks since the last period. Considered less invasive with only a local anesthesia being used on the cervix.

Aspiration: a surgical abortion procedure used to terminate pregnancy up to 16 weeks from the last period. It can also be referred to as suction curettage, dilation and curettage (D & C) or vacuum aspiration.

Consult her OB/Gyn. Since she is only a few weeks in, this shouldn't be a problem. At the same time discuss birth control methods with the doctor.