 [ Symptoms ] is there a relationship between the onset of hypertension and advanced stage parkinson is disease [ Disease ] yes it is normal to not having a fetal pole before 5th and half to 6th and half weeks of gestation… no need to worry another ultrasound scan should be done in 3 7 days due to the fact that pregnancy dating can be wrong it would be much too early at this point to make a clear diagnosis on the outcome of the pregnancy