I feel so odd and insecure after finding about my cousin, am I gonna be okay?

Ive been married since some years, happy and no kids, I never felt I wanted kids. But since few months, I’ve been thinking about it..
I always felt there’s more time so never worrying.

Few days back, my friend calls me saying she is pregnant, she is long distance with her husband and her husband came to see her only 2 weeks back. I was so surprised how did it even happen so fast. I was happy for her congratulating her.

Yesterday my cousin who got married 5 months ago, announced she just delivered her baby 😅
She and her long time boyfriend got married with only her and his parents, super secret marriage. We were only informed after the marriage. Obviously since I knew about her relationship so I was happy for her regardless.
And yesterday, she randomly just send her new born baby picture in the family group.

I was soo shocked to my core. We were close once, and no one had no idea. She was so disconnected from social media since an year and I always wondered why.
Anywhoo, Im happy for her, but I just realized how everyone and everything is going in a very fast pace. Which now scares me..

I still can’t shake it off..if I knew she was pregnant I wouldn’t have gotten this shocked. When I saw the baby picture, I didn’t even know whose baby it was!! I thought she was just sending her friend’s baby or something 😅

Idk if it’s me or, I actually feel I am late for everything. I am going through some issues mental health wise, and this just fired things up..