I'm not sure if I'm having implantation cramps or not. My period was supposed to be here on the 9th....and it's never usually late unless I am completely stressed out...then it may be off by a day or two. But this month, it is MIA. And I keep having this feeling like I am about to get it. I keep saying "Oh I feel it coming. It will probably be here by tomorrow" I've gone through 1/2 a box of 20 ct tampons because I am late and I'd rather be safe than sorry and have a mess.... but the tampons keep coming out absolutely clean. Not one spot on them. And I have this odd feeling....It's not so much cramping as it feels like pressure, not so much gas. Like something is pressing down on my lower abdomen, as if I'm wearing low cut tight pants. Does this sound like it could be it? I've had this feeling for about a week now, on and off... it comes and goes. sometimes more intense than others, and I also feel like I have light cramping feeling down near my uterus...kind of like that feeling when I am about to get my period, but much lighter.......I took a hpt last week, but it came up negative.... I'm wondering now if I tested too early. Has anyone exp implantation cramps and can tell me if this is similar to what you went through? I took a blood test at my gyno but I'm impatient waiting for the results!! I'm trying to find out all the info I can.