[uhuccup]

http://www.nlm.nih.gov/medlineplus/ency/article/003153.htm "Breast - premenstrual tenderness and swelling"

Nice article.. I haven't understood everything because I'm not a native speaker, I'm german
But from what I've understood luteal swelling is caused by progesterin or estrogen.
I've just found an article from a health provider in which luteal swelling is mentioned as an sign of an imbalance of estrogen and progesterin.
But what imbalance exactly (too much estrogen/ less progesterin or the other way) has to be checked by an hormone test in the 2nd half of cycle.