if I was to ask my friend to stop saying strange things about female biology
Ok so this is kinda long and I'm sorry if I say the wrong stuff about the LGBTQ+ community, also though English is my first and only language I suck at it lol. So for a little bit of back story, I (21 female) was raised in a very conservative Christian home but when my brother (Flynn 20 male not his real name) came out I supported him and when our parents blew up we even moved out together and are living together in an apartment. Now once we moved out Flynn started to have a FWB relationship with this guy (Tom 24 male) and would bring Tom over to hang out. Tom is a very logical and smart guy who is maybe 5'3 with long hair (important for later) I liked Tom because we both loved to talk. So even when my brother and Tom broke up all three of us still hung out. Afew months go by and I noticed that Tom's only friends were me and Flynn, so I introduced him to my friend group consisting of Frank (24 male) Alex (20 non binary) and Chase (23 male) and Tom got along great with them. Now afew weeks later Tom texted me asking for me to come over and talk, so I went over and to my shock he explained how he believed he was born as the wrong gender. Though surprised I fully accepted him and asked lots of questions so I could fully understand what all of it in tailed. Since distancing myself to my conservative family I have done my best to learn as much as I can about the LGBTQ+ community so I can be open minded and supportive. So from what I'd read I knew that when transitioning you usually took hormones or testosterone. So I asked him if he would be taking hormones and his response was "well no because I'm small with long hair so I'm already half way there to being a woman" I was slightly taken aback. I myself am 5'6 with short curly hair. A week later he told the rest of our group of him transitioning and they all were supportive. Now here's where alot of the issue comes in. One day while all of us were hanging out, Alex and I were talking about how our periods were kicking our butts and I joke to the rest of the table Frank Chase, and Tom "you guys are so lucky you don't have to deal with cramps and the crazy hormones" and Tom goes "well actually I kinda do have to deal with them" me and Alex just kinda looked at each other. About a week later we were all hanging out when Frank tell us of how in his biology class he was learning about all the things that can go wrong during pregnancy. Getting pregnant terrifies me so I joked "and that's why I'm not having kids" and Tom says "and that's why I'm not getting a womb" again Alex and I just kinda looked at each other but didn't say anything. Also from what I heard from my brother, when he and Tom hangs out, Tom will say "yep it's that time of the month again" I understand this is a sinstive subject but I don't know what to do, I don't want to be a bitch but it just give me a weird feeling every time he says stuff like this, should I say something or am I just letting my upbringing dictate how I feel. Also for some more context, he is going to have the surgery but hasn't gotten yet, and I call him he/him because when he first told me I asked if he wanted me to call him different pronouns and he said no.