Pakutanga kwepamuviri, mazai anogadzirwa anopinda mumuganda we uterine, anonamatira kumadziro uye mucheche unotanga. Panguva imwecheteyo, yakakomberedzwa nehechi ye fetal uye yakabatanidzwa kune yolk sac. Mumavhiki ekutanga 3-4 mushure mokuberekwa, embryo yakanyanya kuduku zvokuti haigone kuonekwa. Chidzidzo chekutanga chinoitwa pamasvondo matanhatu kusvika ku7 , apo iyo yiri inogona kuonekwa embryo, pamuviri . Pakutanga nguva iyi zviri nyore kunetseka.
Kubvira pamasvondo makumi mana embryo haisi kuonekwa zvakajeka, asi chiremba ane ruzivo achakwanisa kuvepo kana kuvapo kwacho mu fetal egg nemaitiro anowanikwa:
- kurima mukati mekutora egg;
- mutsvuku uri mu fetal egg;
- kusapindirana kwezviri mukati mazai nechepamusoro penzira yaro yunifomu uye kunyange mabhomba.
Kuberekwa pasina embryo kazhinji kunonzi anembryonia. Muchiitiko ichi, fetal egg ndeye, uwandu hweHCG muropa revakadzi vane pamuviri riri kuwedzera, asi embryo haisi mhaka, i.e. chiremba anonzi ultrasound haaoni chero chinhu chiri mumupata we fetal egg.
Nhoroondo yakarurama uye yakavimbika pane vhiki ipi iyo embryo iri kuonekwa, panguva ino, kwete. Pane nguva yekuti pane mukana wakareba wekuonekwa kwayo. Asi nguva iyi yakasiyana-siyana kubva pamasvondo matatu kusvika ku9, uye inobva pane zvinhu zvakawanda:
- chimwe nechimwe chemuviri wekadzi;
- kukarurama kwekuverenga kwenguva ye ultrasound;
- Kuwanda kwekudzivirira (nokuti pamuviri wokutanga inoratidzwa nediki duku, iyo inokurumidza kukura, uye naizvozvo inotariswa gare gare).
Kunyange zvakadaro, mavhareji emitemo inowanzoonekwa zvema embryo nevhiki rechinomwe yekuzvitakura, zvakafanana nekuwedzera kukura kweHCG. Kutarisa kuvimba nehutano hwe hCG uye kuonekwa kwembryo hakusi, zvisinei, kuvhara kukura kana kuwira mazinga eHCG chiratidzo chekudzivirira kwechando , kana kuti pasina kana kutaridzirwa fetus. Amai vemazuva ano vanofanira kunge vaine hanya chete kana embryo isati yamboonekwa pavhiki yevhiki 7 ichirwisana nemamiriro ekudzikisa kukura kana kuwira kwe hCG. Asi kunyange mumamiriro ezvinhu aya, zvinokurudzirwa kuti uwane chimwe chidzidzo nemumwe nyanzvi, kana kuti kushandura ku-ultrasound transvaginal, sezvo yakanyatsoruramisa uye inoziva.
Muchiitiko icho 1-2 masvondo mushure mekuvhara hCG kukura, embryo haisati yakaratidzwa kunyange ne transvaginal ultrasound - uye nguva yava pedo mavhiki 9, amai vanouya vanofanira kuteerera mutumbi wake. Kana iyo embryo ikamisa kukura kwayo, inogona
- kuwedzera kwekushisa kuwedzera;
- kushungurudza, kurutsa;
- kushaya simba, kurwadziwa mumisumbu;
- kubuda kweropa kubva mumukadzi (kubva ku-red kusvika kuruvara);
- kurwadziwa mucheche pasi.
Zviratidzo izvi zvinowirirana nekuparara kwemukati uye kukura kwepakutanga kwepamuviri, izvo zvinoda kuongororwa kugadzirisa kudzivirira migumisiro yakaipa yehutano hwevakadzi.