She's Pregnant For Him Even When He Told Her He's Not Ready

We've been together for more than 3 years, I love her so much. But why am scared is that I never got the conviction that she's my wife because they keep on telling me I have a lot of work to do if truly I want to marry her.I was also told she's into a covenant/possessed.I ask her to take a contraceptive on the day we had fun but she refuse that she want it.Although, I ask her to abort which she lateragree after much trouble but she was told (by the doctor) not to abort or else she will die.Am really scared because I don't know why she's taking this step.