What direction is the wind coming from if the tail is going south west?

In scientific and worldwide usage, wind direction is always stated as the direction from which the wind blows. For example, a south wind blows from the south to the north and a southwest wind blows from southwest to northeast. The National Weather Service and all U.S. media adhere to the international convention.

Explanation:

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.