You may need a transfusion of red blood cells if you have lost a lot of blood or your red blood cell count is low (anemia). You may need a platelet transfusion if your platelet count is low (thrombocytopenia). White blood cell transfusions are rare and are only done in very specific situations.
1 So, the earlier after a missed period you take a HPT, the harder it is to spot the hCG. 2  If you wait one week after a missed period to test, you are more apt to have an accurate result. 3  Also, testing your urine first thing in the morning may boost the accuracy. When you use them â The amount of hCG in a pregnant womanâs urine increases with time. 2  So, the earlier after a missed period you take a HPT, the harder it is to spot the hCG. 3  If you wait one week after a missed period to test, you are more apt to have an accurate result.
1 This means home pregnancy tests can be accurate as soon as 1 day after a missed period for some women but not for others. 2  The brand of test. 3  Some home pregnancy tests are more sensitive than others. 4  For that reason, some tests are better than others at detecting hCG early on.f you think you may be pregnant, taking a pregnancy test as soon as the first day of your missed period can help you get the care and support you need. A home pregnancy test can tell whether you are pregnant with almost 99% accuracy, depending on how you use it.