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.
When women get late period or following period with old cellular lining actually removed together with other blood cellular material, they can experience the dark brown discharge instead of period. Brown discharge is normally just âold bloodâ that has been oxidized and left uterus and/or vagina late or later.