AITAH for being upset that husband tells people about our pregnancy when I am not ready to share?

I (33/F) and my husband (33/M) are expecting. We already have a son (3). My first pregnancy was traumatic and it eneded in an emergency c-section. I didn't want any more kids as I almost didn't make it the first time around after severe post-partum depression and I wanted to be able to focus and give 100% to our son. I only just got back to being able to feel like myself recently when I found out I was pregnant. My husband is very happy about it as he's wanted another kid. As for myself, I knew the toll it cost me the first time and I am not sure it's something I want to go through again. I love my son more than anything and I am not unhappy about another baby but I know the toll it cost me mentally and eventually physically the first time around. It was the darkest place of my life and it took a lot of time and effort to be able to get myself out of that.

My husband wanted to tell everybody but I asked if we could just keep it for ourselves while I try to process things. The first trimester was difficult as I quit my anti-depression medication when I found out and I was also diagnosed with hyperemesis gravidarum. I am on my 20th week now and since finding out the baby's gender recently I agreed we could share it with close family (parents, sibling and niece). He had already shared to colleagues and a friend who was expecting, people from our son's kindergarten (because we had to tell our son to ease him into becoming a big brother). I didn't want to tell everyone else but he has some more close friends that I am friends with too that he wanted to tell so I agreed even though I really I didn't feel comfortable sharing any more.

Today we had a fight because I found out he had told people we agreed we didn't have to tell (cousin and cousin's gf and now that cousin's mom). I got really pissed and upset because I already felt pressured into telling all these other people and now he told people we have agreed we didn't need to tell. I feel disrespected and told him that I am trying my hardest to keep myself mentally healthy while going through the process of accepting all these changes without having to worry about other people. He told me I was invalidating his feelings about being happy and wanting to tell people. That it was his baby too and that he should get to share news as he sees fit.

I told him I am happy that he is happy. But that I already felt pressured having to be okay with going through another pregnancy again and then having to tell people even if I wasn't ready yet as even though we're at the halfway mark, I am still in the process of trying to accept everything and working my way up to where he was and I didn't need comments from (granted well-meaning) people because I feel rushed and pressured to be okay and happy with things. I feel really upset and disrespected and feel like I have compromised enough. I also feel guilty that I am not as happy as he is and that maybe it's true that I'm being a stick in the mud. I felt that I've made progress the past few weeks but now after having that fight, I feel myself slipping back again and struggling. AITAH?