第 4 週：一顆有使命的罌粟籽
您的寶寶現在大約像 一顆罌粟籽.
平均身長: 0.2 公分
(頭臀長)
本週您的寶寶
您的小寶貝現在是一個胚胎了，大約是一顆罌粟籽的大小，並且已經在子宮裡著床了！一個充滿液體的羊膜囊正在形成保護層。目前微小的卵黃囊提供營養，而外層細胞正開始建立胎盤，之後將為寶寶輸送氧氣與營養。
本週您的身體
您可能會注意到類似經前症候群（PMS）的症狀，如脹氣或乳房脹痛，有些女性會出現輕微的著床出血。然而，完全沒有感覺也是很常見的！雖然有些驗孕棒聲稱可以提早檢測，但醫學建議等到月經沒來的第一天再測會最準確。
給伴侶的提示
如果您測到了兩條線，花一點時間一起慶祝這個不可思議的消息吧！她的身體已經開始超時工作，她可能會感到非常疲倦。主動多幫忙一點家事會有很大的幫助。您的支持是關鍵。
References
[1]
Fetal development: The first trimester - Mayo Clinichttps://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/in-depth/prenatal-care/art-20045302
[2]
Stages of Fetal Development - Women's Health Issues - Merck Manualshttps://www.merckmanuals.com/home/women-s-health-issues/normal-pregnancy/stages-of-fetal-development
[3]
Fetal development week by week - BabyCenterhttps://www.babycenter.com/pregnancy/your-baby/fetal-development-week-by-week_10406730
[4]
4 weeks pregnant guide - Best Start in Life - NHShttps://www.nhs.uk/best-start-in-life/pregnancy/week-by-week-guide-to-pregnancy/1st-trimester/week-4/
[5]
12 Early Signs of Pregnancy - SSMHealthhttps://www.ssmhealth.com/newsroom/blogs/ssm-health-matters/april-2022/12-early-signs-of-pregnancy
[6]
14 Ways Partners Can Help in Pregnancy, Birth, & Postpartum - Milestones Pediatric & Maternal Nutritionhttps://www.milestonesnutrition.com/blog/partnersupport
[7]
What your partner might need from you during pregnancy - Allina Healthhttps://www.allinahealth.org/health-conditions-and-treatments/health-library/patient-education/beginnings/for-dads-and-partners/your-partner/what-your-partner-might-need-from-you-during-pregnancy