5 week old baby crying at specific timing (unable to comfort)

Hello mummies, my 5 week old baby seems to be fussing and crying at specific hours, like between 6 to 10pm. And it's almost to a point where we can't seem to be able to comfort her. We tried burping her to reduce gas, put oilment on her belly, swaddle her, using pacifier, changed her diaper. And she's always like this after her feed. Is there anything else I can try?