I described before the use of an endometrial biopsy to assess whether a luteal phase defect (LPD) might be the cause of your miscarriages. The procedure is performed in the second half of your menstrual cycle, when you could unknowingly already be pregnant.

If conception has talen place and the blastocyst is already implanted in the uterus, as you might imagine, it could be scooped out by the biopsy instrument, which is inserted directly into the uterus. In fact, such a dramatic ending to a pregnancy is fortunately very rare. However, to avoid that situation it is advisable to have a pregnancy test prior to the biopsy, because the sophisticated new tests can be carried out eight days after ovulation, or on day 22 of your cycle. The endometrial biopsy would usually be performed between days 22 and 25 of the cycle. This is one case where technology has finally caught up with our needs!