An unplanned pregnancy, or a planned pregnancy that becomes unwanted later on, can be a major life crisis or a small challenge, depending on your situation at the time. If you believe that continuing a pregnancy under the circumstances of your life at this time is not right for you, then you are faced with a decision without easy answers. Abortion should never be done without thoughtful consideration of all options and possible consequences. But millions of women have had abortions when they believed that abortion was the best option available to them, and the vast majority of those women do not regret their decision - they just regret that the timing and circumstances of the pregnancy were so difficult. Of course, if a woman felt that she was being pressured by a boyfriend, parent or circumstance to terminate a pregnancy when she opposed the abortion, than her feelings about that experience would not be positive.
Abortion is a very safe medical procedure.
It is extremely unlikely that an abortion would lead to the inability to have children in the future, or any other negative consequence, although as in any medical procedure, a serious complication is possible. As in any medical procedure, it is important to be completely honest with your physician regarding your personal health history, to comply with aftercare instructions, and to report any concerns immediately.