I need your input

L

Hello,

So first off period is 7 days late.

Failed 3 pregnancy tests.

No fever.

No UTI

No STI

No illness.

Symptoms:

Extreme waves of nausea

Head aches

Back pain

Loss of appetite

Frequent urination

Lost of mucus in the flower area

Dizziness

Cramping

All those symptoms started 3 days ago.

I went to the doctor and he said that he thinks I need a blood test because he has a feeling I could very well be pregnant. What do you all think?