You produce more progesterone the week after ovulation—whether or not you’re pregnant. Progesterone is the hormone responsible for many PMS symptoms, like bloating, breast tenderness, and mood swings. If you’re not pregnant, you'll stop releasing the hormone about 10 days after ovulation. (As levels wear off, your symptoms subside, the uterine lining sloughs off, and you get your period.) If you are pregnant, you'll continue producing progesterone (and experiencing PMS-like symptoms). “The difference between PMS and early pregnancy is very subtle

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Someone else posted this and I thought it would be good to share it all with you so your all not driving yourself crazy