Quick background-I'm 26, and have 4 children ages 7, 6, 4, and 1.(note:I know it sounds like a lot to handle, but I am a stay ay home mom, and love my job...oh, and fwiw, we support them with out government/public assistance) I had my tubes tied after the fourth because of pregnancy related health problems that occur when I carry. Though I would have liked to maybe have one or 2 more down the line, carrying a pregnancy to term in this body was not an option[

].
I know I am lucky to have my four, considering some can't have children at all, but I have been having those baby-longing feelings again for a while now, and truely regret having the tubal ligation done-but a reversal is not an option at this point. Visiting friends with new babies is agonizing for me, as it just reminds me that I am not able to ever have that again myself. DH and I have been considering foster care, but it wouldn't be the same and while I love the idea of helping children in need, I don't believe I could handle it when I had to let the child go-I'd be too attached and it would break my heart.
We also been in contact with a couple of adoption agencies, but the odds of us getting a young child/baby aren't the best considering we already have children and there are couples waiting who have yet to have one. Besides, I wouldn't feel right taking away another person's only chance to experience motherhood. Money is also a small factor in this decision, as it costs quite a bit to go through the adoption process, and while we have plenty enough to support our family, that several thousand dollar endeaver would be pretty draining to our life savings.
So my question for the parents out there, did you ever have to deal with these feelings? What did you do about it and how did you get over it?