Lately this thing is bugging my mind lil bit ........ is abortion justified?

1) if you think in a way child inside womb is also a human being so is it not like killing someone?
2) also if you think its women's body so it belongs to her ..... and she has all the right in the world to decide what to do with that child ...... bearing in mind she might be going through different circumstances .....

so should abortion be allowed or not? very confusing to me .........