Shannen Doherty is thinking about motherhood, she tells TV Guide. Doherty, who had a reputation as a hard-living shrew during her days on “Beverly Hills, 90210,” described her short marriage to Ashley Hamilton, whom she had known for two weeks before they were wed, as a “ridiculous thing.” She also said she was unprepared to be a celebrity. “I lived my life as if I wasn’t in the public eye,” she says. “I thought, ‘I’m young. I have the right to experience new things, and if I want to go to a bar and get drunk, that’s my prerogative.”‘ She denies there was bad blood between her and Aaron Spelling, who’s revived her career by putting her on his “Charmed” series on the WB Network, and also denies reports of a romance with Matthew Perry of “Friends.” Nonetheless, she expects to get married again, because “I’m the marrying kind,” she said. “And I want children so badly.”