During days 18-28 of the menstrual cycle, if the egg is not fertilized, the uterine lining begins to break down.
Τις ημέρες 18-28 του εμμηνορροϊκού κύκλου, αν το ωάριο δεν γονιμοποιηθεί, το τοίχωμα της μήτρας αρχίζει να διασπάται.
| Front | what happens days 18-28 menstrul cycle |
|---|---|
| Back | If the egg is not fertalised uterous linings begin to break down |
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