| babycenter - The ultimate pregnancy to-do list: Second trimester• babycentre - Fetal ultrasound - 9 months• | webmd - Second Trimester of Pregnancy• webmd - First Trimester of Pregnancy• Nicole Harris March 03, 2020 Your Pregnancy Symptoms Week by Week, Available at: Accessed: 4th September 2020 |
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| webmd - Your Pregnancy Week by Week: Weeks 1-4• babycenter - Your baby is about the size of a peapod | NHS 17 July 2018 Your pregnancy week by week, Available at: Accessed: 4th September 2020 |
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