1 St. 59 Min, 4 Aug 2002 Jahr - Pregnancy is measured in trimesters from the first day of your last menstrual period, totaling 40 weeks. The first trimester of pregnancy is week 1 through week 12, or about 3 months. The second trimester is week 13 to week 27. And the third trimester of pregnancy spans from week 28 to the birth.
Beschreibung:
https://www.webmd.com/baby/tc/pregnancy-your-first-trimester
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baby development timeline.
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