Sometimes, in early pregnancy
levels do not pick fast enough for good positive results and usually, HPTs cannot read them as they are not as sensitive as blood tests. Since, you got a positive HPT, your hCG levels probably need monitoring and a second blood test can tell the difference. It helps to know if your hCG levels are picking up as they should since you had a miscarriage
in the past. Do not worry, this is only a precaution to ensure that nothing goes wrong and miscarriages often do not repeat. Please get further advice from your doctor. Take care.