I've had a constant dull ache in my pelvis for about 3 straight days now - it started out of the blue about a week after ovulation (we are TTC). It is quite uncomfortable. Today is the fourth day of it and it seems to be subsiding a bit, but I'm not sure. Could this be implantation cramping? If not, what else could it be? Am starting to get a bit worried as have never felt this before. Also feeling super bloated but have been for about 10 days. Has anyone else out there had implantation cramping? If so, what did it feel like?