keep the baby or no?

needing advice on if i should keep this baby that i’m pregnant with right now. i have a 6 year old and a 9 month old. i’m pregnant right now by a man i’ve been dating for a while. we both have said we wouldn’t want more kids, he has a 5 year old daughter. but now that i’m pregnant, i’m having mixed feelings. can anyone give me advice on having kids already and then having an abortion if you’ve gotten pregnant again?