![Pregnancy: The First Trimester](https://i.ytimg.com/vi/8312a32dcQc/sddefault.jpg)
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animation patient education patient engagement pregnancy baby uterus trimester first trimester ovulation fertilization conception sperm egg fallopian tube genetic material genetic code zygote embryo blastocyst implantation embryonic period brain spinal cord heart placenta umbilical cord bones muscles skin fetus hormones menstrual periods nausea morning sickness mood swings constipation weight gain weight loss change in appetite feeling tired swollen breasts