part of immediately_preceded_by life cycle stage 11th week post-fertilization stage 12th week post-fertilization stage 77.0 84.0 EV:0300014 Upper limb length has nearly reached its final proportion to body size (see http://ehd.org/resources_bpd_documentation_english.php). The assignation of this week to the fourth or third LMP month is debatable (see http://en.wikipedia.org/wiki/File:Prenatal_development_table.svg). human_developmental_stage HsapDv:0000049 Fetal stage when the fetus is over 11 and under 12 weeks of development. fourth LMP month stage