1 Incubation time varies with species, clutch size, and temperature and humidity in the nest. 2  The incubation time for most species is 45 to 70 days.  Research indicates that the sex of an embryo is determined sometime after fertilization, as the embryo develops, and may be temperature dependent.
brown discharge usually does not indicate a period. It could very possibly be implantation bleeding, however, as your using a condom every time it is unlikely. But still possible. If your actual period doesn't come I suggest a HPT. I'm not saying your pregnant, but it is possible.
Dark brown discharge is a symptom of âold bloodâ and/or old uterine lining which did not left the uterus at right time (during regular menstrual period). Often the dark brown discharge is just remains of delayed period â most often associated with old endometrial tissues (remains of last period).ark brown discharge instead of period could be early signal of pregnancy â so called âimplantation bleedingâ. After the fertilization occurs the fertilized egg or zygote travels down the fallopian tube to the uterus â during this journey the cell division takes place and the zygote develops into an embryo.