I have learned to not make any drastic decisions during pregnancy or the first year postpartum....I'll tell you a story that I've never told anyone else before...
When Noah was 6 months old, I got a bee in my bonnet about moving out of soCal. My husband (ex now), bless his heart, was as supportive as he could be, even though he knew the employment prospects for him here were slim to none. I rushed headlong into moving here, so convinced it was the right thing to do....
My husband helped me move, and then he moved in with his parents in Long Beach to save money until he found a job here. A few months went by, of course no job prospects revealed themselves...and the separation was gradually getting to me. Finally, practically on a whim, I called my husband and told him that I thought he should stay in California. He was devastated, and we divorced.
Over the last 3-4 years I have gradually come to the realization that I was suffering from rolling stone syndrome (I inherited it from my father, darn him..) and whenever I am experiencing a major change in my life (like a new baby) I tend to get very dissatisfied with my life in general.
In this case, it was a mistake. I understand and embrace that fact. I broke my husband's heart, and I will always regret that. We have both since moved on; he's remarried, living in Amsterdam, and expecting a new baby, and of course I'm remarried and expecting a new baby.
Now that I know this about myself, though, I can prevent it from happening in the future.
I guess the point of my story is....I would wait to act if I were you. The last few weeks, I have been SO irritable, like PMS times 1000. Sometimes I daydream about packing my bag and moving to Switzerland. So I know how you are feeling, but for your sake, your DPs, and most importantly, your baby's.....don't do anything until you are absolutely sure that it is what you want. And it doesn't sound like you are sure.