massage and bio-feedback.
I had a great psych that when I was overehelemed and in a vicious cycle got me on track with a managable plan...It took time but I found how much I could gain control over...especially stress.

My daughter in law had to take effexor during the pregnancy, no problems.
There may be herbs and natural items to take that will help. Did you think of a Dula (sp) to support you. Maybe she ca come and massage and monitor and be an ear every few days?
A good support person and extra set of eyes and ears.
Hugs
Di
PS...there is a natural pain relief, almost a natures built in cocain for managing pain if you can get your body to that point. Many also in pregnancys' have a loosening of muscles that helps with spasms relief.