I am 3 months late for my period, my last period was 10th april, I have been having regular unprotected sex since then.

I have done a couple of hpt and they were negative, the doctor did a urine test on 8th june and that was negative.

Could I still be pregnant and not show up for some reason?????

I feel bloated all the time, my breasts feel heavier and fuller, I feel light headed and dizzy quite a bit and been having times where I feel nauseous and I am suffering from a lot more gas than I normally do.

I came off my pill in november and had normal periods up till april, I have not changed my diet, I am not stressed, so dont understand why im missing so many periods if I am not pregnant

any one got any advice?????