<human>: Can you provide a brief overview of the text?

I don't think my friend reddits but this is a throwaway account just in case. I'll call my friend Sarah just for simplicity.

Sarah and I have been best friends for over 22 years and have seen each other through a lot of tough times. Earlier this year, like in January, my friend became unexpectedly pregnant by her then-boyfriend. He had always been a shitty and unsupportive boyfriend, and was not supportive of keeping the baby. He eventually talked her into getting an abortion, which she still regrets getting as far as I know. He then dumped her a couple months later. It was really rough for her, and she's gotten through it admirably.

What happened today actually kind of caught me off guard. Sarah and I talk often throughout the day and tell each other a lot, and today I happened to find out that a girl we both know and are friendly with is pregnant (it's now a known fact among a lot of people we know I guess). I mentioned it to Sarah in a, "oh guess what I found out today" kind of way. She asked if the pregnancy was planned, and I replied that I thought not, but they were going through with it. She then said "Well, it's nice to know that someone has a supportive partner. I don't want to talk about this any further". I replied "I'm sorry I upset you, I didn't mean to, we won't talk about it any more".

Sarah then told me that she couldn't believe I would bring that up to her, and she doesn't want me to talk to her anymore. I was completely floored that she reacted that badly. She'd never put the kibosh on talking about pregnancies, and we've talked before about other people's kids and pregnancies without issue. I would have never brought it up if I'd known she would get that upset. I feel like total shit now. I guess my question is, was I completely insensitive by casually mentioning someone else's pregnancy to Sarah?
<bot>: My best friend had an abortion several months ago. I casually brought up the news of a mutual friend's unplanned pregnancy which is being kept, and she got really upset at me. Did I mess up?