Talk to Pediatrician on Breast Feeding

Asslam u Allikum any lactation consultant here? I want guidance. My baby is 27 days old and still he can't properly latch and milk supply is too low to fill his tummy. He cries even after 25 to 30 mints feed and end up on bottle feed. I'm much worried. sometimes breast feed leta hi nhi hy bht rota hy suck karta hy but jb milk nhi ata tu phr rota hy. me pump kar k bhi deti hn or pump karny sy bhi hardly 1 oz banta hy both breast ka. 4 sy 5 dafa pump karti hn or phr sath bhi lgati hn but all in vein. please meri help karain me apny ko kesy just breast feed karwa sakti hn