在你17周怀孕的时候，你不断长大的胎盘达到1英寸厚。
By your 17th week of pregnancy, your growing placenta reaches one inch in thickness.
怀孕到第11周便流产了。
怀孕到36周前每隔两周要看一次医生，36周后开始必须每周都要去医生那儿检查一次，直到您分娩为止。
You should see your doctor every 2 weeks until 36 weeks, then once a week until you deliver the baby.
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