Njengamanje, kunenqwaba yezinzalo zokubeletha ezitholakalayo ukusiza ukuvimbela ukukhulelwa okungadingeki. Kodwa phakathi kwalezi zinhlobo eziningi, imibhangqwana ethile ayikwazi ukukhetha ikhambi elifanele. Kunezindlela eziningana zemvelo zokuvikela ngokukhulelwa okungahlelelwe. Enye indlela enjalo ukubalwa kwezinsuku eziphephile, lapho kungekho khona usongo lokukhulelwa okungadingeki. Imibhangqwana eminingi ikhetha le ndlela, nakuba ayithembekile, kodwa ayinayo ingozi enamandla.
Ukuze usebenzise ngempumelelo le ndlela yemvelo yokwelapha, kufanele ukwazi ukuthilala izinsuku eziphephile zocansi. Kunezindlela ezithile zokubala izinsuku ezingenabungozi lapho umuntu angakugwema ukukhulelwa okungahleliwe. Lezi zindlela zihlukile ngezinga lokuthembeka okunokwenzeka futhi zidinga ukunemba, ukunakekelwa kanye nokunemba kwezibalo. Ukubala izinsuku eziphephile, indlela yekhalenda yokubala izinga lokuzala izasetshenziswa. Ngaphezu kwalokho, izinsuku ezinjalo zingalandelwa ngokusebenzisa ukuhlolwa kwe-laboratory ye-mucus ethathwe emgodini womlomo wesibeletho, futhi ngokulinganisa ukushisa okuyisisekelo.
Ukuvuthwa kunesibopho senqubo yokukhulelwa. Cishe izinsuku eziyishumi nane emva kokuphuma kokuya esikhathini owesifazane uqala ukuvota. Umjikelezo ojwayelekile ojwayelekile wokuya esikhathini wesidumbu sowesifazane uya izinsuku ezingamashumi amabili nesishiyagalombili. Phakathi nalesi sikhathi, kusukela ngosuku lweshumi nanye kuze kube ngosuku lweshumi nantathu lomjikelezo, iqanda lenziwa futhi likhishwe. Kubalulekile ukukhumbula ikhono le-spermatozoa ukuhlala likwazi ukusebenza futhi linamandla izinsuku eziyisikhombisa ngemuva kokungena emzimbeni wesifazane, ngakho-ke kungenzeka ukuthi umklamo kungenzeka. Kubalulekile ukugwema ucansi kusukela ngosuku lwesishiyagalolunye lomjikelezo wokuya esikhathini ngosuku lwamashumi amabili. Ukuze uthole incazelo ecacile yosuku oluyingozi, ungasebenzisa ifomula - ubude bomjikelezo omude kunayo yonke izinsuku, sithatha ishumi nanye, sithola usuku lokugcina lwesigaba sokusebenza kwamandla okukhulelwa; kuthathwa njengesizathu sokubalwa kwesikhathi esifushane sokujikeleza kokuya esikhathini ezinsukwini, sithatha ishumi nesishiyagalolunye futhi siqala ukuqala kwezinsuku lapho kungenzeka khona ukukhulelwa okungenzeka. Imijikelezo yokuya esikhathini yokubalwa ithathwa izinyanga eziyisithupha zokugcina.
Isiteji sokuvuthwa kweqanda lingabalwa ngokusebenzisa igrafu lapho ukushisa kwe-basal kunqunywa khona. Kusetshenziswe i-thermometer evamile. Idatha yokushisa eyisisekelo itholakala ngokufaka ngokucophelela ukushisa kwe-thermometer ngaphakathi kwe-rectum, ngaphandle kokuvuka ebhedeni, uzama ukungabonisi umsebenzi, ngamahora ekuseni uma uvuka ngesikhathi esifanayo. I-thermometer e-rectum kufanele ibanjwe imizuzu emihlanu. Idatha yesifinyeto ibhalwa kwincwajana njengetafula. Esikhathini sokuqala sokuqala komjikelezo wesimiso, izinga lokushisa lingama-36.3-36.5 ° C. Ukwandisa izinga lokushisa libe ngu-37 ° C noma ngaphezulu kuyisibonakaliso sokuqala kwe-ovulation. Lokhu lokushisa okuphakeme kuqhubeka kuze kube sekupheleni komjikelezo wokuya esikhathini. Kumele kukhunjulwe ukuthi iqanda elivuthiwe ligcina likhona izinsuku ezimbili, ngakho-ke izinsuku ezimbili nesithathu emva kokuphakamisa izinga lokushisa okuyisisekelo kungaphephile. Kodwa kungcono ukusekela isikhashana, ngoba Iqanda linethuba lokuphila isikhathi esithile.
Izici ze-mucus ezithathwe emzimbeni zingabonisa ukuthi kukhona isikhathi esiphephile sokuvimbela ukukhulelwa okungadingeki. Phakathi nesikhathi sokuvuthwa kwezinga, izinga le-estrogen likhuphuka kakhulu futhi ngenxa yale nethonya lamahomoni, i-mucus ibonakala ingabalabala futhi ibuhlungu. Izinsuku ezinjalo ngezocansi ngaphandle kokuvimbela ukuvimbela isisu akufanelekile, ngoba ingozi yokukhulelwe iphezulu. Uma kwenzeka ukwephulwa kwesizinda semvelo se-hormone yomfazi, ikhwalithi ye-mucus yomlomo wesibeletho ingashintsha futhi, ngakho-ke, indlela enjalo yokubala izinsuku eziphephile ayithembekile.
Indlela enokwethenjelwa kakhulu ongayibala ngayo izinsuku eziphephile zokulala ocansini kuyindlela yokubonisa. Lokhu kuyinhlanganisela yazo zonke izindlela ezingenhla, isb. ukulungiswa ngokucophelela kokushisa okuyisisekelo, ukulawulwa kwekhwalithi yansuku zonke ye-mucus ekhishwe kanye nokuqoshwa kwekhalenda yokugunyaza kwemijikelezo yokuya esikhathini.