Can you be eight weeks pregnant to take the medical pill?

I'm not completely sure what you mean by this question, but here's my answer:

If you have been taking a contraceptive (Birth Control) pill while pregnant, there will probably be little or no side effects.

If you are asking if you can take other medications while pregnant, this would depend on exactly what medication it is you are taking. You should consult your doctor or a pharmacist to find out what effects your medications could have on your unborn baby.