happy time?

This is a rant. Stop reading if you want, you've been warned.
This is supposed to be one of the happiest times of my life, instead I can't even enjoy my pregnancy I feel. No one wants to hire someone who is preggo. Why would they? There's no point. Just to have them work for a couple months then be gone. I'm just tired of alot. I just want to bring my child into this world having his parents be stable. How can I be a good mom when I'm worrying about how I'm going to pay my bills? I'm worried about if he can't breastfeed how am I going to be able to buy him food? I know this is somewhat exagerated but these are some of the things that have gone through my mind.