Thoughts of divorce

This is going to be a little long but please read and reply as I have nobody else to talk to and any comments are welcome. This morning I was so tired and my husband wouldn't wake up. My thought was "I'm so done with this, this is ridiculous, what will I do? How can I leave? Where will me and my baby go, then I immediately thought of my old guy best friend, he owns apartments so I figured I'd just call him and stay there till I could get on my feet" I literally just fantasized about leaving and it made me kinda happy but also scared to death. Me and my husband don't have to many issues. Our main issue is how heavy of a sleeper he is. We did break up once in high school and that's where my old best friend comes into play, while we were broke up my best friend admitted he had feelings for me, one drunk night and things got a little physical with us and once me and my husband were back together I told him all of that and he didn't want me to be friends with him anymore so I haven't even talked to him in forever but still I know if I needed him he'd be there for me and that's what I feel so guilty for. Partly that I'd even think about him as an option when my husband is great just because I'm tired and partly because it would be using him. For background info: my husband is horrible to wake up. He has this alarm that is louder than a smoke detector and it still doesn't wake him. I have to wake him by physically shaking him/hitting him(not hard or like abusive just enough for him to feel it). Anyways I have trouble sleeping at night being 8 months pregnant so when his alarm goes off in the morning I just want to cry because I know it will be an hour long process of me waking him, him hitting snooze and then repeating the process until he will be late. I just feel like such an awful person. But at the same time I literally just cry sometimes because it's so hard to deal with my husbands sleep habits. He sleeps so heavy it scares me. But I feel like such a bitch for complaining since that's our only issue and he works everyday while I stay at home.