My last period started on the 7th October and finished on the 12th. My partner and i have had sex a few times in the last two weeks. I now have very tender breasts and my nipples are quite sore to touch, and i have been feeling very tired. I have been pregnant before, which unfortunately didnt turn out, but my breasts are as tender as they were before. I dont have any problems with having sore breasts when my period is due, which leads me to believe i may be pregnant. I have taken a pregnancy test this morning which has turned out negative. Have i tested too early?