Childbirth in itself is hardly pleasant - the pain is excruciating and it's not exactly dignified. So even if you were to dislike discussions on the basis of being squeamish - you could hardly be considered unusual. You're also still rather young, i don't see how you can be expected to enjoy discussions on birthing and motherhood at your age.

All that being said, i think for this topic to be so concerning you've come on the internet looking for answers, I think your earlier experiences of the topic probably have heightened your feelings. You witnessed an emergency situation that could have had a very negative outcome. It didn't throw childbirth into a more positive light for you. And as much as it's a fascinating process it isn't without potential dangers/risks - so a professional would need to work through this topic and how you feel about it in a balanced yet sensitive way.

I hope you have access to such options. All the best.