Okay, hon, calm down.
I'm gonna just address this in bits and pieces because you've got a lot in there.
So, let's just talk about the 'miracle of life' bit. A lot and by that I do mean a lot of women can't have children. Hysterectomies, PCOS, crappy hormonal balance, etc make many women face the reality that they will never be able to carry a child to term. Yes, it sucks. A lot. Not all but most trans women I've known go through this at one time or the other. It's just a fact of life. Eventually, you make peace with it. I'm not going to sugar coat it and say that it's an easy process but it *does* get better with time. That said, I don't know what your preference for partners is but there are some options to have a child that is yours and if not, adoption is something that will likely be much more open in the next few years. Raising a new person to be their best doesn't necessarily involve nine months of awful side-effects and sore backs and then a labor so painful that your body literally forgets it happened afterward.
Okay, next up is the self-acceptance of your body and self bit. You are who you are and only you can decide on who that is. Transition isn't for everyone. Most advice tends to go along the lines of "If it's transition or death, go with transition. Otherwise, take a good stock of things, talk to a GID counselor for a while, and make your decision after careful and considerate deliberation." I'm not saying to talk to anyone else about that decision. I'm just saying that transition is what it is and it's not easy.
If you realize that your core is that of a woman and you do decide to transition, you'll find that you will grow into yourself with time. Not every woman is graceful. I know more than a few that are lumbering blockish types that look ready to play football rather than dance a ballet. If you find that you want to be graceful, you will be. If you find that you want to be elegant, you will be so long as you decide that you want to present that to the world. The external is a representation of the internal and no manner of trying to cover that up will work. Everyone reacts to the person they see inside the actions, not the actions themselves.
That said, I'm going to echo the sentiments of the others here. The first bit will have you very awkwardly growing into your new life and missteps, mistakes, and little happenstances that you'll find really funny in an embarrassing way later on will happen. We've all been there. Trying to figure out how to live genuinely as yourself doesn't mean that you'll hit your stride first try *but* eventually, you'll get the hang of being yourself and the world will accept you as that.
To tarry into the personal, I'm 5'10" to 6' flat, depending on the day, 200lbs of mostly muscle, and have the chest width of a pro football player. My shoulders stick out about 3" over my hips on either side and I've got some brow and the like going on. Yes, I know every single little thing that separates me from the anatomical average *but* I've mostly stopped caring. I can pop on a t-shirt, pants, and shoes with no makeup and get not a stare in the world. No one looks at me and thinks "wow, that's totally a dude with boobs! ew!" I tend to think that this is mostly because I'm just who I am and, so long as I don't obsess over what I'm not (a cis GG or a dude) people just react to what they perceive and, that just so happens to be me.
I know this is scary. I know it's weird and, especially early on, you can't help but to compare yourself to everyone and everything around you. If this is your path though, I can say that it gets a lot better if you open yourself up to accepting what is instead of wishing for what isn't or denying yourself out of fear.