Help, not sure what is going on with my body.....

[GlitterMum]

Hi,
Was wondering if anyone know what I am feeling.....
I am currently going through IUI.
I had the insemination done 2 weeks ago on Monday, and I have taking Progesteron pessies internally since.
As of 3 days ago, my nipples became so sore I could not touch them (i was nearly crying). They felt like they were burning from the iside out. My nipple is also staying errect and seems swollen. (sorry if TMI)
I have also been moody as hell and yesterday I burst out crying in my bosses office. (i am never usually that emotional)
Could this be all be side effects from the Progesteron pessies????????

Help.
My FS has also brought foward my BT to tomorrow instead of Monday. Is that a good thing or bad thing???