I am not sure if this is the right forum to post this question but as a FTM with a 3 week old I am not sure where else to look up on ?

My baby wears mamypoko diapers , his clothes washed in organic baby detergent & sun dried , he is on BM & Formula milk.

Also his bath products are organic - I massage him with virgin coconut oil & bath him in Organic baby body wash.

Issue is - when I wash his clothes & let them out to dry in the sun, it smells different / strong / fishy / unpleasant - it's not the urine stink or something - am unable to tell it but it's too strong & unpleasant .

What could be the reason ? How to get rid of this odour ?