anorexic and pregnant

i’ve recently found out i was pregnant but i’m anorexic-bulimic and coming to terms with the fact that i’m gonna get bigger is hard. so hard i’ve been contemplating abortion.. it’s not that i don’t want the baby because deep down i do but my eating disorder is telling me no. telling me it isn’t worth it. i don’t know what to do and i’m in so but emotional pain over this. i’m 18 and scared. is there anyone else in my boat or anyone that has been in my boat? any advice? really just anything at this point i don’t know what to do. please please please help me. please