By Robin Elise Weiss, LCCE
This baby is from the 18th week of pregnancy.
198 paper clips equals about seven ounces, so your baby is growing a lot. The bones are undergoing a process called ossification, which means they are hardening.
More from Week Eighteen:
Ultrasounds | 18 Week Belly Photos | Pregnancy Calendar
Pregnancy CalendarBelly & Ultrasound Photo GalleriesThree Trimesters of Pregnancy
Due Date ClubsCalculating Your Baby's Due Date25 Signs of Pregnancy
How Your Baby Grows10 Questions for Your DoctorQuestions Before Prenatal Testing
Robin Elise Weiss, LCCE
About.com Pregnancy & Childbirth
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