I went to hospital tonight because iwas having pain my right side really low like i was getting my af but still no show .but anyway they did a blood test.and it was 3.9 put when they did my blood levels 4 days ago it was .2.now they are sending me for an ultrasound on monday .does this mean i might be in early stage of pregnancy.or no .im late on my af was to start on the 7th is it to early to tell .plz help me understand.thanks ladies in advance.