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2nd Trimester

14 weeks after conception
(16 weeks after the last menstrual period)

14 weeks after conception
© Nilsson

Actual size = 4 3/4 inches long from crown to rump (120.7 millimeters),
equal to the width of a compact disc
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18 weeks after conception
(20 weeks after the last menstrual period)

18 weeks after conception
© Nilsson

Actual size = 6 ½ inches long from crown to rump (165.1 millimeters),
about the length of a standard "Bic" pen
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22 weeks after conception
(24 weeks after the last menstrual period)

22 weeks after conception
© Nilsson

Actual size = 8 1/2 inches long from crown to rump (215.9 millimeters),
equal to the width of a standard piece of paper (letter-size)
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