Hi my period is now 11 days late I've done 2 hpt and they were both negative, could there be anything else wrong. I have been feeling right for the past week I feel tierd most of the time and sick, in the past few days I've also been getting very dizzy. Does anyone have any ideas

Go to the doctor and have a blood test, it will be able to tell you if you're pregnant or not and they can also find out what's going on if you're not pregnant.