Obviously, one has to weigh the realities of the desire to be pregnant rationally. We know (or at least most of us, but I am awestruck at the girls who make the news who do NOT) htat pregnancy is a means to an end. The end of course being motherhood, caring for a child for the entirety of your lifetime. I, too, had that urger, desire or whatever you want to call it from an early age. I think that because of CF in our lives, we have a heightened awareness of the preciousness of life. Women who have experienced infertility (as far as I have encountered) NEVER complain about pregnancy and birth. They are overwhelmingly grateful.
I'm sure that there is nothing like brimming over with new life. Nothing. There is nothing like knowing that you have been chosen to bring a soul into the world or like feeling and knowing that creation is happening inside you. It is amazing.) and there cant possibly be anything better in life then having a beautiful child created from you and the person you love and having them call you "mommy" and "daddy", seeing your spouse hold your kid, nothing can be better then that, c'mon now
Birth. Birth is hard work, but if you let your body do what it was made to do, you will be able to not only get through it, but even ENJOY it! I've known moms that truly love to give birth - I havn't yet due to the fact that i am only 17, and when i hear these stories about how they never want to have kids, i think their NUTS.
There is a very rational reason for all of this - especially factoring in CF. Pregnancy and birth are our last best hope that our bodies will do SOMETHING right. And you know what, they can. Not everyone's can of course (not even every healthy woman), but the odds are actually in our favor if our health is generally good and stable. Not to preach or persuade, but simply to encourage. Take good care of yourself. If you find that when the time comes that you really to desire, NEED, motherhood as much as a pregnancy (a good test is whether you would be just as happy to mother a non-biological child as biological), be encouraged that there is a good chance that you CAN.