I've been on MtF hormone therapy on and off for a few years now. On and off because of compliance issues really. I get a prescription, after a few months when changes start to happen, I panic and stop. I'm still not openly out of the closet.
My chest measurements are 37.5 overbust and 34 underbust, standing on a 5 ft 7in, 67kg frame. The circumference of my shoulders (including arms) is about 43 inches, so the breasts are really small in proportion to my shoulders.
Confusingly, bra size calculators give my bra size to be anything from A to D. My ex-girlfriend who is 100% supportive of my transition, but broke up with me (she said a MtF is not for her) said that she thinks my bra size is between A-B.
I get odd looks now when I go topless as a guy to a public swimming pool. I don't think I have enough breast tissue to wear a bikini, and tucking will be a problem with just bikini bottoms.
I'm concerned that if I go out with a one piece now, I will clearly look like a man because of my shoulders and small breasts.
My ex also said that I should get hormone implants because they deliver a stable dose and compliance once they are inserted is not an issue. I understand that they last for around 6 months and permanent changes (like sterility) happen after 3. Does this mean that after they are inserted, I can effectively kiss my testicles goodbye?
When I do have the money, I was thinking about getting the smallest possible breast implants, probably 125cc, to get used to the idea of having breasts while still in the closet. Until I am ready to come out, how easy are breast implants of any size to hide? i.e. how "squish-able" are they with a tight compression bra, to become flat? Again my ex chimed in and said if I am going to get them, I might as well get the biggest ones to get my money's worth, and screw what people think.
I'm really confused. Thank you for any advice.