Ukulinda umhlangano wokuqala nomntanakho yisikhathi esithakazelisayo kakhulu ekuphileni komama ozayo. Njalo ngesonto, noma ngisho nosuku, lidlala indima ebalulekile ekukhuleni nasekuthuthukiseni kwengane, ngaphezu kwalokho, usuku lomhlangano okhangayo lukhuni lusondela. Njengomkhuba wokubonisa, indlela enembile kunazo zonke yokubala i-PDR ( usuku olulinganisiwe lokudiliva ) futhi unqume isikhathi sokukhulelwa singasebenzisa ikhalenda yokukhulelwa kwe-obstetric, noma ithebula lenziwe ngesisekelo.
Ikhalenda lokukhulelwa elingavumelani - liyini iphuzu?
Indlela ye-obstetric isetshenziswa kabanzi odokotela, ngoba kubhekwa njengento elula kakhulu futhi iseduze nangokoqobo ngangokunokwenzeka. Ikhalenda elingavunyelwe i-reference point ithatha usuku lokuqala lokugcina esikhathini. Lokhu kungukuthi, ngokujikeleza kokuya esikhathini esihlala njalo izinsuku ezingama-28, umehluko phakathi kwesikhathi se-obstetric ne-embryonic amasonto amabili. Ngoba, ngokusho kwekhalenda le-embryonic, isikhathi sokubeletha sibalwa ngqo kusukela ngosuku lokukhulelwa.
Lokhu kuyinzuzo ecacile yendlela yokwelapha, ngoba akusiwo wonke owesifazane okhumbula usuku lobulili obuyingozi. Ngaphezu kwalokho, ayikho isiqiniseko sokuthi ukukhulelwa kwenzeka ngalolu suku, njengoba, njengoba kuyaziwa, i-spermatozoa igcina ikhono lokukhulelwa ngaphakathi kwezinsuku ezingu-3-4, kanye ne-egg cell - cishe usuku. Kumele kuqashelwe ukuthi akuwona wonke owesifazane ongaziqhayisa umjikelezo wemihla ngemihla engu-28.
Ngakho-ke, empeleni, kulula kakhulu odokotela, ngisho nangowesifazana, ukuqala kusukela ngosuku lwenyanga eledlule futhi ugcine ikhalenda lokukhulelwa kombelethisi ngamasonto, kanye nalo ukubala i-PDR.
Ngokusho kwendlela yokubeletha, sonke isikhathi sokukhulelwa sithatha izinsuku ezingama-280 noma amaviki angu 40 (ikakhulukazi, izinyanga ezingu-9 nezinsuku ezingu-7). Ngakho-ke, ungafunda usuku lokuzalwa olulinganiselwa ngamanani alula usebenzisa amafomula amabili:
- Ngokwehlukile kokuqala, ngosuku lokuqala lwenyanga yokugcina (PMDP), izinyanga ezingu-9 nezinsuku eziyisikhombisa zengeziwe.
- Ifomula yesibili iphakamisa ukuthatha izinyanga ezingu-3 kusuka ku-VDPM bese wengeza izinsuku ezingu-7.
Emitholampilo yokubeletha, sebenzisa ikhalenda yokubeletha njengetafula, ngokusekelwe kumfomula kaKeller (izinsuku ezingu-280 zengeziwe ku-PDPM).
Ikhalenda lamasonto ezinzima
Odokotela, nabesifazane abaningi, baqhuba ikhalenda yokukhulelwa kwe-obstetric njalo ngesonto ukulandelela ukuguquguquka kokukhula nokuthuthukiswa kombungu, kanye nokuhambisana nokulindelekile usuku olulindelekile. Ngaphezu kwalokho, inzuzo yesisindo, izinguquko ekuhambeni kwesisu, ukuphakama kwe-uterine fundus, neminye imingcele eminingi kuthathwa njenge-akhawunti.