Thanks for the query.
If you meant you have tested with beta hCG and the titer is falling and not corresponding to the period of gestation as per dates, then you will have to see a gynecologist soon. The causes like ectopic pregnancy, blighted ovum, missed abortion, no growth in the embryo, etc have to be ruled out.
Kindly do the needful. You will need an ultrasound examination.
Hope this helped.
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