My last period was 8-22-13 I have taking 3hpt all negative a week after being late dr did quanative but was negative I'm going on week 3no period but all signs point to pregnant but the positive test could it have been to early could I still be pregnant

Not sure what "signs" point, since at one or two week late, there are no signs except missing the period.

One week late is too early to test, so it most likely would be negative. You should be at least (at least) two week late, before you test. Always use first urine of the morning as soon as you wake up