Sorry, i can't type chinese, but i can't help to say something.
i strongly agree with Tree and Williamlyle.
i am a Buddhist,so i won't encourage you to devoice first. i think you should take good care to youself and baby most important. you can looking for some help on your marriage, like you both see the doctor, or charity , WCA's councilor.these guys probably can help you. Also i believe the Buddhua will help you to be strong and calm to face the truth from your inside to outside. this positive attitude is good medicine for you and your hu*****and's relationship right now.if you are nice, gentle and peaceful to talk to him about your feeling. maybe he will be nice too.if he noticed you are trying to keep this family, and appreciate it. this guy still deserve your love. if he doesn't care your change, i think you guy's 緣分 is gone. just like Tree said don't be scare.
in my experience, i am pretty sure that Buddhua can help you to recover your diffculty. try to approach Buddhua if you like in your future life, you will be surprised. trust me. and if you have time read the 地藏經 during your pregnance, you will get a beatuful and smart baby.
best luck to your family now!