No, blood can't change type during pregnancy.
No.
As I was once told, "a positive is a positive"The body produced a hormone called HCG only when pregnant.HCG is the hormone that is produced by the placenta during pregnancy. This hormone is what a pregnancy test detects. It stands for Human Chorionic Gonadotropin. During a normal pregnancy, the HCG levels will steadily rise throughout pregnancy.
Yes, it is possible to have healthy children with blood group O positive and B negative. The Rh factor (positive or negative) only becomes a concern during pregnancy if the mother is Rh-negative and the father is Rh-positive. In this case, the mother may need to receive certain treatments to prevent complications during pregnancy for subsequent pregnancies. It is recommended to consult a healthcare provider for personalized advice.
Yes, an A positive man can marry an A negative woman. Blood type compatibility does not affect the ability to marry or have a successful relationship. It is only a concern during pregnancy if the mother is Rh negative and the father is Rh positive.
No
Individuals with Rh negative blood type do not have the Rh antigen on their red blood cells. This can be significant during pregnancy, as an Rh negative mother carrying an Rh positive baby may develop antibodies that can harm future pregnancies. It is important for Rh negative individuals to receive proper medical care during pregnancy to prevent complications.
The negative blood comes from the rhesus scale. So type A negative blood means you are rH negative. This poses a potential problem during pregnancy if the mother is rH negative and the father is rH positive. In that case the mother will receive a rhogam shot during pregnancy and right after birth to prevent the potential mixing of blood between mother and child from causing a serious reaction in the mother's body.
Positive feedback.
Erythroblastosis Fetalis is a disease that affects mothers with a positive RH factor when their unborn babies have a negative RH factor. It only has negative side-effects during the second pregnancy.
It happens when the father is of a positive blood group (having Rhesus (Rh) factor) and mother of a negative blood group (devoid of Rh factor), the fetes' blood group will be of the positive type, i.e., having Rh factor as having Rh factor is a dominant trait and can mask the negative blood group. So, this creates problems for the kid as well as mother during pregnancy. Usually, the first pregnancy will not have much complications. But, the second pregnancy onwards, the antibodies present in the mother from the first pregnancy will be present and is harmful for the fetes. It happens when the father is of a positive blood group (having Rhesus (Rh) factor) and mother of a negative blood group (devoid of Rh factor), the fetes' blood group will be of the positive type, i.e., having Rh factor as having Rh factor is a dominant trait and can mask the negative blood group. So, this creates problems for the kid as well as mother during pregnancy. Usually, the first pregnancy will not have much complications. But, the second pregnancy onwards, the antibodies present in the mother from the first pregnancy will be present and is harmful for the fetes.
as direction of current reverses it is shown in form of positive and negative cycles
If the fetus is O positive, there will be no problem. If the fetus is O negative and is the first O negative baby, nothing will happen to it, but the subsequent O negative fetuses will be miscarried unless the mother takes some special injections during this pregnancy.