I Thank GOD every day for my husband. Carlos puts up with a lot of my crap (Mood swings, depression, frustration, happy, sad, horny, "don't-touch-me", kisses, snuggles, and everything in between).
Our son is teething like a monster right now. His bottom two are through, and his top right will break through in the next 3-4 days, even with the tip already through his gums, the tooth is not all the way out. The teething rail we got it awesome!! Here is a photo and the link:

Kidkusion Gummi Crib Rail
Now he chomps on us (that is our fault, it is just soo darn cute when he does it!) but when he chomps on our 73 year old neighbor, I am slightly embarrassed.
My advice to any couple (married or other) should make sure their bond and understanding of each other, tolerance of emotional blow ups and understanding of being put "second, not on purpose" is truly unshatterable. If there is any fault line in any of the above areas, it will get MUCH WORSE when baby arrives. I am blessed to stay at home with my son, but it is a blessing and a cause for my frustration at the same time. He is not bounced around to caretakers at a Daycare, he is with just myself through the day, and not exposed to germs. I cannot get anything done around the house. For instance I did laundry yesterday and by doing so, was unable to pump. My supply has been waining for the last month+ however I have been trying to re-establish it by pumping frequently throughout the day. We hardly have time to make love since Jesus is so active (and my husband works 50+ hours a week). I am too paranoid to leave him with anyone for us to have a "date night". Plus he is a member of our family, not a "dog to be left with a relative".
How do you handle the trials of motherhood??