abortion

i just found out i was prego a few days ago. my boyfriend wants an abortion because we just had a baby 6 months ago. i dont want to do the abortion. when i mention keeping the baby he gets mad and says we can't afford another kid right now and that we already have a hard time taking care of the one we have. he has a lot going on right now. i want him to at least think bout it before just jumping to as abortion. what are some pros i can tell him.or some advice.? help!!! idk what to do!!!!!