Let me start off by saying that I have been pregnant before. My boyfriend and I had sex quite a few times while I was ovulating. My period is due today...And shows no signs of coming. I am showing pregnancy symptoms (which I know could be pms), which are fuller, & really sore breasts, my lower back is killing me. Sleeping at night is horrible. Also, everytime that I eat..I get severe heartburn and sick to my stomach. I have taken a couple pregnancy tests..And they both have come back negative. But I know my body...And I know what it is telling me. Is it too early to test? If I am pregnant...I would be..4 weeks as of last friday. Please let me know what you think...Is it too early for me to test?