Kusukela evikini lesi-4 lokukhulelwa, ngaphansi komphumela wamahomoni okukhulelwa, i-mucus yomlomo wesibeletho ihlangana ezingeni lomlomo wesibeletho ukuze yenze ipulaki yamafinyila. Le nqwaba yamafinyila ivala umlomo wesibeletho futhi iqinisekise ukucinana kwawo ngesikhathi sokukhulelwa, ngaleyo ndlela ivikele ingane ekungenweni izifo ezikhuphukayo. Eqinisweni ipulaki yamafinyila yenziwe ama-mucins (ama-glycoprotein amakhulu) avimba ukuphindaphindeka kwegciwane futhi avimbele ukudlula kwamagciwane. Ibuye ibe nezakhiwo ze-immunological eziholela ekuphenduleni kokuvuvukala phambi kwamagciwane. Ucwaningo luphakamisa ukuthi ipulaki yamafinyila edlala kabi ekusebenzeni kwayo kwesithiyo ingase inyuse ingozi yokulethwa ngaphambi kwesikhathi (1).

Ngaphansi komphumela wokufinyela ekupheleni kokukhulelwa (izifinyezo ze-Braxton-Hicks) bese kuba yilezo zokubeletha, umlomo wesibeletho uyavuthwa. Njengoba umlomo wesibeletho uhamba, ipulaki yamafinyila izobe isikhishwa futhi ikhishwe ngendlela yokulahlekelwa okunamathelayo, okwegelatinous, okucwebezelayo, okuphuzi noma okunsundu. Ngezinye izikhathi ziba pink noma zinemicu emincane yegazi: leli gazi lihambisana nokuphuka kwemithambo yegazi emincane lapho ipulaki yamafinyila ihlukana.

Ukulahlekelwa kwepulaki yamafinyila kungenziwa kancane kancane, njengokungathi kubhidlika, ukuze umama ozayo angaboni ngaso sonke isikhathi, noma konke ngesikhathi esisodwa. Kungenzeka ezinsukwini ezimbalwa ngaphambi kokubeletha, ngosuku olufanayo, noma ngisho nangesikhathi sokubeletha. Kufanele futhi kuqashelwe ukuthi njengoba ukukhulelwa kuqhubeka, umlomo wesibeletho uyanwebeka kakhulu, ipulaki yamafinyila kwesinye isikhathi iba ningi futhi ngenxa yalokho kulula ukuyibona.

Ukulahleka kwepulaki akukhathazi: kuyinto evamile futhi kukhombisa ukuthi umlomo wesibeletho uyasebenza. Kodwa-ke, ukulahlekelwa kwepulaki yamafinyila kuphela akunikezi isignali yokuphuma esibhedlela sokubeletha. Lokhu kuwuphawu olukhuthazayo lokuthi ukuzala kuyeza maduze, kodwa ngeke kuqale phakathi nehora noma izinsuku.

Ngakolunye uhlangothi, noma yikuphi ukopha kwegazi elibomvu esithweni sangasese noma amahlule amnyama kufanele kubangele ukubonisana (2).

Ukuze umemezele ukuqala kwangempela kokusikwa, ezinye izimpawu kufanele zihambisane nokulahlekelwa kwepulaki yamafinyila:

• ukufinyela okujwayelekile, okubuhlungu, okunesigqi sokuqina okwandayo. Uma lona kuyingane yokuqala, kuyatuseka ukuthi uye ewodini yababeletha lapho ukufinyela kubuya njalo ngemizuzu eyi-10. Enganeni yesibili noma yesithathu, kuyalulekwa ukuthi iye egunjini lababeletha ngokushesha nje lapho iba njalo (3).
• ukuphuka kwesikhwama samanzi esizibonakalisa ngokugeleza koketshezi olusobala nolungenaphunga, oluqhathaniswa namanzi. Lokhu kulahlekelwa kungaba okuqondile noma okuqhubekayo (kungase kube nokuqhekeka ephaketheni lamanzi). Kuzo zombili lezi zimo, phuthuma ewodini lababeletha ngaphandle kokulibala ngoba ingane ayisavikelekile ezifweni.