Before 2 days I checked my pregnancy blood test it was 50.25 in 2 weeks but today I got my periods my doctor said that it is pregnancy it is right having 50.25 in blood for that time I am very worried can you help me?

You need to consult with your own medical practitioner as they know your medical history.

That can be a normal level on a blood test in the first few weeks of a pregnancy. Some women will have some spotting or bleeding in early pregnancy, but it is always wise to let your doctor know as Curlyben suggested.