I don't think you are crazy either. I am living the same nightmare. My H is an alcoholic and is doing his 'thing'. I am currently pregnant too. I also have warned him about the DUI factor and he has already gotten one about 6 years ago so if he got caught again he would be in a world of trouble.
No, you are not alone!!
Me: 46 FWS: 36 Married and Divorced 4/07, Pregnant 7/07,False R 7/07 Baby Girl born 3/08 Kicked him out because OW: 7/08 5/10 He realized what he had and lost. Moved home! REMARRIED 3/14/11!!