Week PP NO MILK😔

Va

My LO was born 6 days ago and breast milk didn't "drop" until yesterday... So far I'm only seeing what I think is collestrum through pump.🤷🏼‍♀️

Baby latches well but milk hasn't really flowed so she gets anxious. I've had to use formula. So far I've been mixing it with whatever I can get through pumping.

Any advice on how to produce more? Has this happened to anyone this many days postpartum? Is this colostrum?