Hi, I m Karen. I missed my cycle, and my last cycle was June the 2nd. I have been experiencing Cramping, frequently peeing, Mood swings, bloating, sore nipples, Light headache, and lower back pains. I took to pregnancy test and they said that I wasn t. I was gonna take a Blood test tomorrow to see, but I don t know if it s to early? Can you explain how that goes?