Today I am 4W5D according to my calculations, first apt is not for another week, and I have had mild cramping and sore breasts but no other symptoms. Tonight my lower back has been the worst so far, no bleeding but I miscarried my last pregnancy for the first time and it feels very similar to the way it did right before I miscarried. The only way I can describe the pain is the feeling that my muscles are tight and the urge to want to try to crack my lower back. I have myself almost in tears and running to the bathroom every 20 minutes to check for bleeding. Is it normal for it to feel this strong this early? I mean I'm not in agonizing pain but its more of a constant annoying. I am so scared and trying not to worry but its so scary.