When to start pumping ?

Sindhu
Hello
LO is officially 6 weeks old now. I would like to pump and introduce a bottle now. But I want to stick to offering a bottle only once a day cause I don't like washing bottles at all. When is the best feeding to pump and how should I proceed with the whole thing. I mean should i feed first then pump and give the milk in the evening when our milk is low?  (Currently baby is cluster feeding in the evening and it is exhausting ). How should I go about the whole thing ?