Pretty Woman -
I know how much you are struggling with the situation with your boyfriend and am so sorry that you are going through all that you are.
You say that you know that he loves you but as hard as this is to realize, sometimes love just isn't enough. Have you thought about sitting down and actually making a list of pros and cons of being with him? You might even want to go back and read your own posts on this site from the beginning and see if perhaps your perspective has changed.
I know it seems easy for someone else to look at a situation that they are not involved in and offer suggestions or advice but sometimes an outsider can be a little more objective because their heart isn't involved.
Whatever your decide to do, I wish you and your baby much happiness and a wonderful future together.
Hugs, Jo