I'd planned too TRyan, so, for anyone who wanted to know what I did and how it went, read on!
*Update*
So, I had a few things I'd decided to do, I said, if this person picks me up and takes me there like last time I'd wear the bra but on the other hand, if the person who was supposed to take me last time takes me this time (The person I was worrying would notice/say something) then I won't wear my bra. I was thinking of ways to explain how they'd shrunk and so on. So here is what I did and what happened.
I wore no bra, instead I put a normal sized band aid over my nips (One for each nip), I had to adjust it some to make sure they didn't poke through and success, no nips poking through the whole time. I also thought to say to the ride if they said anything, hey, it's called expansion (grows larger)/de-expansion (shrinks) from heat/cold. (Heat being expansion while cold being de-expansion, though I was burning up and have been so, that wouldn't have worked if they'd touched me) Luckily, while doing the band aids I thought of a MUCH better idea to were it would be hard for anyone to tell/notice and say for sure I wasn't wearing my bra. I typically tuck in my shirt into my pants, pretty much because of my hair on my body, I don't want anyone seeing it (Mainly my back but some stubble for the front) so, then it hit me, just don't tuck in the shirt and it won't be as tight so, that will work, just got to be careful not to expose the hair is all. (Plus, I did have the excuse of not to wear tight clothing so, not having it tucked in made more sense but not like you have to tuck your shirt in anyway)
I also had the thought process of, if woman can walk out into public without a bra on then so can I and that doesn't make them or me any less of a woman, same with the size of a woman's breasts. (Whether she has them or not or tiny/Hugh, she's still a woman if she says she is)So, how'd it go? Well, it went extremely well. There was an incident where my body didn't react right to the laughing gas (Too much of it for my body's liking, others can handle the amount they gave me, I on the other hand can't so they gave me small amounts) and I thought I was going into cardiac arrest but they gave me air and changed things up, said all my reading were fine and no further incidents, besides some bleeding out of no where from one of the extraction sites but I was told that was normal and instructed on what to do and so far, it's been fine. Still taking it easy though. As for the ride, he never said a word to me, hopefully that stays that way plus I'll have to do this once more for the follow up appointment so hopefully this will be the last time. Anyway, the ride took me to the store to get food I needed, only at the pharmacy did they misgender me and even after I told them, "I'm sure you know to be respectful to me as I've been to you, thanks." I figure, they think it was ok since they'd be seeing my name and all but it wasn't, I didn't take the chance when we went up to another counter and waited for them for a few mins else where. Still, besides that, it went very well and if you're wondering, there was hardly any pain at all and what little pain I felt was bearable. Oh and, they didn't use an IV or the ECG so they didn't have to lift up my shirt. The reason why they didn't is because if they did, I'd have to have someone with me for 24 hrs and I was going to have to spend the night at the ride's house so I chose, nope, not doing that and no IV unless I need it, luckily I didn't need it. Oh and, I didn't feel embarrassed without my bra on in public, though if the nips were poking through that might have been a different story so, remember those band aids people.

If anything else happens, I'll give you all another update here.