The sensual caress evokes a different somatosensory cortex response when the action is performed by the women to men but when the same action is performed by a men to men. There is no such response, this is because of the cognition response.
In this the person already has the response in the mind. These responses are generated at the time of reading , listening to radio, some touch of opposite sex.
obesity it's self often causes irregular cycles so the woman could have no knowledge of the pregnancy for a longer time because this lack of period would be expected. weight gain could also go unnoticed.
