推荐回答（2个）
是。你就记住“前七后八”，来月经的前七天和月经结束后的八天内为安全期，其他时间都不是。在“前七后八”的边缘也不一定，也应该采取避孕。这个“前七后八”是相对于月经周期比较稳定的人来说，如果你的不准，那就难说了
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