Melanie - Sarah Louise is right. Hormones, especially estrogen for the MtF, MtA, or AtF, are a big step, especially for a young androgyne in a hetrosexual, child-bearing relationship. You can't always predict the exact effects they are going to have.
And you are gong to find it very difficult, as I have, to locate a medical/psychological team that endorses low-dose HRT for the androgyne.
There are plenty of ways to feminize your male self, short of using estrogens (of any dose). You will come across these on the boards from time to time, and in the archived threads.
If you do go the hormone (and/or hormone-blocker route), you will need to seriously consider sperm banking. HRT can leave you irreversibly sterile in a few short months. It may also leave you impotent.
With that said, you wanted some real life experience. I am a male-bodied, bigendered, bisexual, androgyne, with "persistant pubertal gynecomastia" (meaning I have had moobs since I was a young teen and that my natural hormone levels were not in the normal male range). Last year, I started seeing a "family therapist" locally, because there are no true gender therapists near me. She wasn't very versed in trans issues (perhaps more in gay and lesbian issues), and she wasn't really on board with a GID diagnosis, but she recognized that I had some level of gender dysphoria, and I was able to convince her and a sympathetic GP that lose dose HRT might be worth a trial. Which is not exactly "by the book." I get a liver function panel and blood work done every 3-4 months.
I had already taken Aldactone (spironolactone) as a diuretic for a couple of years because of hypertensive heart disease, so I went on the lowest dose 17 beta estradiol patch. (Interestingly, my cardiologist took me off Aldactone when he increased the dosage on another potassium-sparing ACE inhibitor.) The first thing I noticed on the patch was that my nagging dysphoria more or less vanished. The second thing I noticed was the renewal and expansion of the breast buds I had for 40 years. I am still ambivalent about my current state of "blossoming," and I don't feel ready to jump in with both feet. Consequently, I have sought out another therapist.
This is somewhat atypical, as far as I know, but androgynes seem to be the trouble-makers and envelope pushers in the trangender world. My low dose HRT regimen has helped in some respects, and has had unexpectedly quick complications in another.