上个月12号来大姨妈

来自班艳丽医生的专业解答，快打开看看是否又获得了新的知识点～

https://m.baidu.com/bd_page_type=1/t=mip/tc?ct=54&lid=35119921782359&module=mip&cst=91&clk_extra=%7B%22pageid%22%3A%2235119921782359%22%2C%22searchID%22%3A%2235119921782359%22%2C%22nPageID%22%3A%2235119921782359%22%2C%22mip_logid%22%3A%2235119921782359%22%2C%22masterpage_type%22%3A%22self%22%2C%22originalUrl%22%3A%22https%3A%5C%2F%5C%2Fm.120ask.com%5C%2Faskg%5C%2Fmip_detail%5C%2F77895106%22%2C%22srcid%22%3A%22landingpage%22%2C%22name%22%3A%22A%5Cu533a%5Cu6b63%5Cu6587%5Cu6298%5Cu53e0%22%2C%22id%22%3A%22expand_content%22%7D&tcreq4log=1

https://m.baidu.com/bd_page_type=1/t=mip/tc?ct=54&lid=35119921782359&module=mip&cst=112&clk_extra=%7B%22pageid%22%3A%2235119921782359%22%2C%22searchID%22%3A%2235119921782359%22%2C%22nPageID%22%3A%2235119921782359%22%2C%22mip_logid%22%3A%2235119921782359%22%2C%22masterpage_type%22%3A%22self%22%2C%22originalUrl%22%3A%22https%3A%5C%2F%5C%2Fm.120ask.com%5C%2Faskg%5C%2Fmip_detail%5C%2F77895106%22%2C%22srcid%22%3A%22landingpage%22%2C%22name%22%3A%22A%5Cu533a%5Cu6b63%5Cu6587%5Cu4e0b%5Cu65b9%5Cu4e2d%5Cu95f4%5Cu5c55%5Cu5f00%5Cu6309%5Cu94ae%22%2C%22id%22%3A%22new_expand_content%22%7D&tcreq4log=1

快速问医生

病情分析：你好，你末次月经第一天是上个月12号，结果这个月12号没有来月经，你有同房，戴了避孕套，这四天也还没有来月经，如果之前没有怀孕，只是这最近同房，不会怀孕的

班艳丽

主任医师

提示：本内容仅作参考，不能代替面诊，如有不适请尽快线下就医

问题描述：上个月12号来姨妈，结果这个月12号没来，我就跟老公同房了，戴套了，结果这都四天了我的姨妈还没来，是怎么回事啊，怀孕了？