How do I cope with my parents telling me to get an abortion when I'm 24 years old?

My parents have basically disowned me because I refuse to get an abortion. I'm 24 and will be 25 by the time my baby is born. I have been with my boyfriend for over 2 years and we have a steady income and a roomy home. I don't see the problem with having the baby. But my parents won't budge! How am I supposed to deal with this?! I love my parents so much, but their harsh words are killing me!