Parenting
Ultrasound Scans: Track Your Pregnancy Week-by-week
![Ultrasound Scans: Track Your Pregnancy Week-by-week](https://assets.afcdn.com/album/D20110317/755820_OV1611XFNG8B36685LDU1YBWJRFFPL_1ere-echographie-grossesse-echographie-2-semaines_H152251_L_w944h530c1.webp)
Ultrasound scan at 4 weeks and 4 days of pregnancy: the egg is visible in the form of a small vesicle measuring 3mm in diameter and surrounded by a halo corresponding to the future placenta. The egg is implanted in the endometrium (lining of the womb).