Doctor, I had an abortion 1 month ago but I haven't had my period yet. I took a pregnancy test and it showed 1 dark line and 1 faint line. I had a urine test and they said I was pregnant but the ultrasound showed nothing. I didn't say I had an abortion. So am I really pregnant?

The hormone hCG is secreted by the placenta during pregnancy. The concentration of hCG in the pregnant woman's blood changes over the weeks of pregnancy with a large difference between the lowest and highest concentrations. However, the gradual increase and then decrease and then level off also occurs at both the highest and lowest levels. This shows that the hCG concentration is not important whether it is high or low, but only whether the concentration increases or decreases and levels off.

Detecting pregnancy by test sticks, probe ultrasound, abdominal ultrasound, etc. are traditional methods used by many women. In addition, medicine has now developed additional testing methods such as urine tests or blood tests based on detecting the presence of a hormone (also known as hormone) called hCG (Human Chorionic Gonadotropin).

Ultrasound is an important imaging method to check the development of the fetus and possible pathological abnormalities. Ultrasound shows that the fetus' head is smaller than the gestational age due to many reasons, the fetus may still develop normally or have a disease.