A male  baby normal vaginal Delivery  cried spontaneously  with satisfactory Apgar, 1,5 and 10 minutes.

Mother didn't receive any narcotics  at delivery.history of rupture membrane 24 hours before delivery. Amniotic fluid is clear. Baby has good color but no cry.

what you think?

This would be my take - if the infant seems perfectly well, I would not worry too much. On the other hand, if there are some minor clinical signs/symtom (like some reduction in muscle tone, not perfectly normal feeding behaviour etc-etc), I'd be suspicious and probably do some basic lab workup and then refer for clinical followup with the community pediatrician (and then he/she refers back in case of increased suspicion of congenital disease)

For me, definitely this baby must be closely observed and basic lab tests are essentials;

I have observed this repeatedly in babies whose mothers were taking SSRI antidepressants, specifically Zoloft. Happy baby who does not cry.

Cheers,
MK