I am about 3 weeks late for my period. I have taken several pregnancy tests which were all negative. I am wanting to know if I'm pregnant or not. My periods are normally regular so this is unusual for me. And this last week or so my breasts and nipples are tender, urinating frequently, light cramping and back aches.

Exactly when did you take these several tests? As in how many were in the last week... and exactly what time of day was you taking them?

If you want to know for sure you can go to the Dr. And they will do a blood test as long as it has been 2 weeks since your missed period.

Now after3weeks u can make a test and it is correct but if.i.want to be sure u can go to the doctor and make an echography and u can make bhcg test in blood