Is pregnancy announcement necessary? And how and when docwe do it?

Background:

We have been ttc for 8yrs for our 2nd baby. So when we got pregnant, it was more of fear and anxiety... im already 9weeks. Good heartbeat and no spotting. But we have still kept it a secret for reasons we both dont even know. When we meet our friends we just pretend and we never dd tell them. Nothing on socmed and no i have a lot on my mind (hormones is not helping too, im crying all the time)

Why are we not telling everybody yet?

Why do i feel that my husband is not as excited as i expect him to be?

Why am i not telling all my friends? (I only told our family and very few friends ... like 3)

Is this normal? Is this the effect of all those failed pregnancy? Am i going crazy?