1999 Oldsmobile Intrigue 1999 Oldsmobile Intrigue won't sta

1999 Oldsmobile Intrigue 6 cyl Automatic 120000 miles

About a month ago my 1999 Olds Intrigue would not start so my husband had the starter checked (which turned out to be good), and replaced the ignition switch and battery. The car worked fine until about a week ago the check engine light started coming on and off and periodically the car would turn off while I was driving. Then two days ago it wouldn't start again. The lights and everything work, but all I hear when I turn the key is a click. Could the starter have gone bad now or is it something else?Any help would be greatly appreciated.