Raws li paub, qhov tseem ceeb tshaj plaws rau qhov pib ntawm cev xeeb tub yog qhov kuaj pom 2 cov poj niam txiv neej: txiv neej thiab poj niam.
Thaum twg kev xeeb txawm?
Raws li twb tau hais los saum toj no, lub sijhawm zoo rau lub tswv yim yog lub sij hawm tom qab ovulation. Tom qab cov ripened follicle bursts, lub qe tsiv raws li cov hlab ntaws mus rau hauv lub uterine kab noj hniav.
Nyob rau hauv rooj plaub no, kev loj hlob ntawm lub qe yog tsuas yog tsawg los ntawm lub sij hawm thav duab. Yog li ntawd, qhov kev xav tau tshwm sim hauv 12-24 teev tom qab lub sijhawm ntawm kev tso tawm ntawm ovule los ntawm lub follicle.
Dab tsi cuam tshuam dab tsi?
Nws yog paub tias spermatozoa yog siv tau rau 3-5 hnub. Yog li ntawd, tom qab sexual intercourse tau noj qhov chaw, lawv tseem npaj txhij rau impregnate lub qe thaum lub sij hawm no. Yog li ntawd, qhov kev xav tau tshwm sim tau txawm tias qhov kev sib deev yog 3-4 hnub ua ntej ovulation, thiab cov kabmob uas nyob hauv lub tsev menyuam tseem muaj sia nyob.
Ntxiv nrog rau lub sij hawm ntawm kev sib deev com, qhov tseeb tias ceev ntawm lub zog ntawm spermatozoa cuam tshuam lub conception kuj muaj feem xyuam. Qhov nruab nrab, nws yog 3-4 hli ib feeb. Yog li, nws yuav siv li ntawm 1 teev mus rau nws los ntawm txoj hlab ntaws. Nws hloov tawm hais tias nws tus kheej fertilization, tom qab kev sib deev com tshwm sim txawm tias thaum nws tsuas yog ib teev.
Dab tsi yog qhov ntau tshaj ntawm qhov kev xav hauv ib lub lim tiam?
Muaj ntau tus poj niam, thaum kawm paub tias lawv cev xeeb tub, sim teem ib lub sijhawm ntawm lawv tus kheej, thiab nco qab thaum uas qhov kev xav tau tshwm sim. Tab sis tsis tas nws puv tawm. Thaum tsim muaj lub sijhawm xeebtub ntawm nws tus kheej, thiab muab piv nrog qhov kev kuaj pom ultrasound, cov poj niam tsis to taub qhov sib txawv hauv 1 lub limtiam los ntawm.
Qhov tshaj plaws yog tias spermatozoa, nyob rau hauv lub uterine kab noj hniav, khaws lawv viability. Yog li ntawd, txawm tias thaum nyuam qhuav pib tshwm sim tom qab tsis muaj kev tiv thaiv, qhov tshwm sim los ntawm kev xeeb tub yuav mob 3-5 hnub tom qab sib deev, uas feem ntau yog cov ntxhais tsis paub txog.
Yog li, ib tug poj niam, paub txog thaum lub caij pom tshwm sim tom qab com, tau yooj yim xam lub sij hawm ntawm cev xeeb tub, nco ntsoov tib lub sij hawm hnub kos yog thaum nws tau sib deev rau lub sij hawm dhau los.