###Human: Had Medroxyprogesterone after a negative scan and now I am getting positive UPT test. How? ###Assistant: Hi. How are you doing? You are about 14 weeks gestation, based on your last menstrual period. At this size, the embryo is easily visible. The blood test will also have high hormonal levels. Pregnancy hormone detected by scan and urine is serum beta hCG. If the fetus is healthy, the levels of this hormone increases exponentially. So if it is 2 Iunits today, in 48 hours it will be 4 IU, and so on. So by 14 weeks, the levels should be very high and easily seen on the scan. Mostly doctor noted a very low level of this hormone. It takes a few weeks for this level to fall to below detectable levels. If you want to still confirm the health of the baby, ask the doctor for the beta hCG result. After 48 hours of the test, check the same beta hCG. If the embryo is healthy, the level of hCG will double. If the baby is unhealthy, this level will fall or rise, will be less than double. So, Medroxyprogestrone acetate will not cause pregnancy hormone reaction, so this hormone is not causing pregnancy hormones. If your doctor feels that levels are very low. I would advise you to wait for 10 to 14 days. You will have periods, if the baby is not there.