The two-week wait

Between the embryo transfer and the blood test there are about ten to fourteen days. Medically the interval is a simple necessity: the pregnancy hormone has to reach a level a blood test can measure with confidence. As lived experience, those two weeks are often the hardest part of the whole treatment.

Why two weeks

After transfer the embryo has to implant in the lining of the uterus and then begin producing the hormone a pregnancy test measures. Testing early gives a number you can trust neither when it is positive nor when it is negative. That is why the test date is not a suggestion; it is part of the treatment.

What is normal

Mild cramping, bloating, breast tenderness or light spotting can be effects of the supporting medication rather than signs of the outcome. The same symptoms appear in cycles that end in pregnancy and in cycles that do not. Reading them as a sign of success or failure almost always turns out to be wrong.

Why a home test is too early

Many protocols include an injection related to the very hormone a home test detects. Residue from that medication can produce a false positive, and late implantation can produce a false negative. The blood test on the agreed date is the answer you can rely on.

Bed rest is not required

Prolonged rest after an embryo transfer is usually unnecessary, and you can return to everyday activity following your doctor's advice. What is necessary is continuing the supporting medication exactly as prescribed until the day of the test.

When the result is negative

An unsuccessful cycle is not the end of treatment. Every cycle produces clinical information: ovarian response, egg quality, fertilisation, embryo development. On that basis your physician may change the medication or the protocol for a future cycle. And if suitable frozen embryos are available, continuing does not mean repeating every stage from the beginning.