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Last Menstrual Period (1st day)
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Period: to
Menstruation
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Period: to
First Trimester (~ 13 wks)
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Period: to
~ Pregnancy Window ~
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Ovulation {Ovary}
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Period: to
Week 1
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Fertilization (~ 24 hr) {Fallopian Tube}
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Period: to
Zygote (1-2 d) {Fallopian Tube}
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Period: to
Corpus Luteum -- hormone responsibility
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Period: to
Morula (2-3d) {Fallopian Tube}
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Period: to
Blastocyst (4-9 d) {Uterus}
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Period: to
Implantation (start @ 7-8d) {Endometrium of Uterus}
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Period: to
Placental development
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Period: to
Embryo (9d- 9w) (notice l8 period w/in here) {Uterus}
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Period: to
Fetus (9w - 9mo) {Uterus}
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Period: to
Placenta -- hormone responsibility
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Period: to
Second Trimester
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Period: to
Third Trimester