Hi there I have been surgery from ectopic pregnancy 8 years ago,they took my one tube,can I get pregnant again?

Pregnancy may he harder to achieve, but it is still highly possible.

Do you think what is the best thing can I do to be pregnant again?do I need a medicine?

I don't know whether you need medication, that would have to be discussed with your OB. However, many women go on to have children naturally after a tubal pregnancy.