The only thing I can suggest you do is follow your heart. While you're pregant you do go through a number of emotions, but don't let that cloud your judgement. You not only have your well-being to think about, but that of your child as well. But think about this, you've been with this man for 5 years, something had to keep you there and if it wasn't love, why give 5 years of your life to someone you're not sure you want to be with? Just take some quiet time and think. Good luck either way though.