They say that the best way to force men to make marriage proposals is to become pregnant from him. We mean that if you become pregnant, probably, and it will be possible for you to force the man into marriage, but you should take another possibility into account: you can achieve the opposite result. Now, when sexual revolution has thundered from Moscow up to most of the surburbs, men declare, that common bed is not a substantial reason for acquaintance and for marriage. Certainly, it is possible to press such a "cynic" but take into account, that thus you start to represent danger for the man. It doesn't matter why the man didn't want to marry you - now, when you attack him, you become his rival. And then he makes up his mind that he has a right to protect himself. And at times his methods of protection can be rather mean: he even can commit a crime. If you still decided to force the man up to make a marriage proposal, your would be husband can begin to hate you sooner or later, and the child and subsequently all your life will turn into to constant revenge.
If he still manages to escape, it is necessary for you to find some other more cheerful variants: either to make abortion if it is not too late or to give birth to the child alone.
Anyway he usually can't keep from thinking: "If at the beginning of our life she tries to force me into making marriage proposals, what will be later? No, perhaps, I shall rather chuck her till it's not too late..." So, you should think it over very thoroughly before you advance into action.