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19 Sep 2007

Am I pregnant
I received a pregnyl injection on day 14 of my cycle, 3 Septembert 2007. I did a HPT on day 24 which was positive (my cycle is usually beteween 24-26 days). I did a blood test which was positve. On day 25 & 26 I experienced heavy bleeding (my old mentruation period), however I did a HPT again on Monday 17 September 2007, positive and again one this morning which was also positvie.

My question: If you get a pregnyl injection, is it possible for a blood test to indicate that you are pregnant and maybe you are not?
Does the heavy bleeding means that I possibly lost the baby?
How long after I miscarrieged will the HPT be positive?

Answer 411 views
Fertility expert
fertility expert

01 Jan 0001

Dear Rene

Pregnyl in essence is HCG which is the same hormone one would measure in a pregnancy and therefore traces of pregnyl may still be present in the blood stream after an injection even 12-14 days later (dose dependent). However it is important that the absolute levels of HCG should be measured (quantitative beta HCG) and if these levels are increasing then this is definite proof of a pregnancy. However should the levels be dropping this may still be a consequence of the injection and is not diagnostic of pregnancy perse. In your case however the fact that the pregnancy test remains positive after the bleeding is a fairly strong indication that pregnancy did infact occur and depending on the levels of hormones attained, the pregnancy test may remain positive for variable duration after a so-called miscarriage.
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