breast feeding/pumping

my question ladies please is if you pump & feed how long after baby has fed would you pump? soon as baby has finished or leave for a while?? im having my 4th baby I've always pumped & fed by bottle started because my son wouldn't latch at all & carried on as found easier with 3 young children my husband could help with bottle feeding but still benefit of breast milk but with all 3 stopped about 6 weeks then felt guilty for ages after. want to breast feed this time hopefully for longer but after few weeks if get good milk supply again did with my other 3 thinking of still pumping occasionally so my husband can still feed occasionally. Thanks x