I'm at a loss...

I'm 30 weeks pregnant and I still have a desire to be intimate with my husband.  He's struggling with seeing me as his sexy wife while I'm pregnant. I've tried things to remind him that even though I'm pregnant, I'm still me.  My engine doesn't get hot as easily as it did pre-pregnancy...but I'm still a woman who wants the closeness with her husband. 

Things were going in a good direction last night and I was thinking to myself "wow! This is going to be good! I'll probably even have an orgasm (which I haven't had in over 2 months)", but then as soon as the clothes came off he didn't want to touch me anymore. I'm a big fan of breast stimulation, but he's afraid they'll start leaking or something while he's there, but I haven't experienced any leaking yet. He likes my butt , but he wouldnt touch it anymore. I don't know why.  When I tried to kiss him it felt like he wasn't even in the room.  So I decide to give him a blow job, which normally helps turn both of us on, but he just laid there. No change in breathing, barely any change in stiffness. I gave it a good try before I felt like I could barely hold back the tears anymore. When I stopped he took that as a go ahead for intercourse where it lasted until he finished while I had my face in a pillow crying. He laid back down and fell asleep...while I went to a different part of the house and sobbed uncontrollably for an hour. 

This morning he asked me what was wrong last night and I told him that it's not a conversation to have at the start of the day, that we'll talk later. This is not the first time we've had a talk like this and I'm getting exhausted bringing it up.  I know he's masturbating and that bothers me too, but honestly, if I'm going to be feeling hurt, I would rather be hurt by that than what happened last night.  

When we talk later, how should I handle this? Any help would be greatly appreciated.