if a squeaking sound is coming, better to check your break pads, if you can yourself then put the car on jack, remove the front tyres one by one, and you can see your break pads, if the pad thickness is about 1-3mm then its time to change the pads.
If more, then pads are ok and something other than pads needs to be checked, maybe the disc is not ok.
If you cannot identify yourself, then go to some mechanic and ask him to check if break pads are enough or not.