Answer from:
A biochemical pregnancy is a positive pregnancy test – is when the Beta HCG that is produced by the products of conception and is shown as a positive pregnancy test in a urine test or also in a blood sample. A biochemical pregnancy is not per se a miscarriage and as there is in some cases not of a proper gestation sac inside the uterus and that’s the difference between the biochemical pregnancy and the miscarriage and sometimes biochemical pregnancy is detected as the patient or the woman will be doing a pregnancy test very very early. If the pregnancy tests had been taken a few days later that biochemical pregnancy would have not been detected and the woman would have just had or assumed to have had a natural period. So the difference is that the biochemical is simply a positive pregnancy test in a urine sample or on a blood sample instead of miscarriage is often associated with the presence of a gestational sac inside the uterus which can be detected by ultrasound scan from the 6 week of pregnancy onwards normally.
Answer from:
Biochemical pregnancy is one that is already detected with a pregnancy test. This is usually available approximately two weeks after the embryo transfer which actually means or translates into week five of the pregnancy. The pregnancy is calculated from the beginning of the menstruation so we need to realize that even in a natural cycle and a natural conception, the point where the embryo is nesting in the uterine cavity, in the endometrium, represents approximately week 3 of the pregnancy calculated from the menstruation. In the case of IVF this is represented by the embryo transfer. So once again, embryo transfer week 3, biochemical pregnancy 2 weeks later – week 5, detected either from urine or via a blood test. the first important successful step but there’s still a long way to go.
Answer from:
Chemical pregnancy is just really a term for when we identify that a woman has a positive pregnancy test but then we do a scan and we can’t see a pregnancy on the scan and so often all that really means is that the pregnancy certainly happened but that this pregnancy has not got big enough for us to identify either a little sac or a little embryo or baby on the ultrasound scan. So, really it’s often just a very very early miscarriage and a term we use for that.
