Breast milk has no fat? Please help

Kimya

I exclusively breastfeed and pumped the first few weeks but no longer have to pump regularly. I do use a silicone pump from time to time on the side he is not nursing on. I’ve noticed my breast milks fat layer has decreased substantially to barely no fat layer on top once it separates in the fridge. It also looks like white watery milk instead of creamy like it use to.

Does anyone have any knowledge of if this is okay or how to increase the fat content in my milk? My son is 5 weeks old and only sleeps for 3 hour blocks still. I’m thinking it may be due to little to no fat in my milk.

Any advice would be much appreciated, I exclusively pumped with my first but didn’t have this issue before. There was always a thick layer of cream on top. Thank again fir any advice or support