Beta HCG levels increase in maternal blood after proper conjugation between spouses.
On the other hand, visual changes occur. Since the onset of pregnancy, increased blood levels of beta HCG are determined by blood analysis. However, the increase in beta HCG levels is not sufficient for pregnancy.
The exact diagnosis of pregnancy can only be achieved by Transvaginal Ultrasound. Pregnancy sac may not be seen in very early stage of pregnancy. In this period, thickening of the uterine wall, the presence of thick walled corpus luteum cyst in the right or left ovary is evaluated in favor of pregnancy even if the pouch is not seen.
Transvaginal ultrasound can be used to display the gestational sac in the control examinations performed after 1-2 weeks.
A high level of beta HCG does not always mean that healthy pregnancy begins. In the early period of pregnancy, the gestational sac and the place of residence (ectopic pregnancy),whether the condition seen in the wall of the sac is irregular and whether there is a fluid around it. During the examination, whether the baby is in the sac (anembrionic pregnancy) is investigated.
When the transvaginal ultrasound is performed, the probe inserted into the vagina remains in the vagina before the womb. Therefore, transvaginal ultrasound is not a low cause. Transvaginal ultrasound is not used when detailed ultrasound is performed.
Transvaginal ultrasound is a safe examination.