The most normal positions for afterward(s) are: initial position and final position: 1) Afterwards, we went to the cinema. 2) I suffered the consequences of that for years afterwards. Usually "afterward(s)" is used to say that something happens after something else that has already been mentioned.

Do you have a context or something specific you are trying to say? Here are some examples with afterwards in different places: - We went to the cinema last week. Afterwards we had coffee in the cafe next door. - My next class is maths, then afterwards I have literature. - I don't want to do the ironing now. I'll eat dinner first and do the ironing afterwards.