Don't be the doctor has its own reason why you have to undergo another test, this would give a much detail examination to make an accurate diagnosis.
yes you should get it checked by a doctor
most definitely yes, you should be worried and see a doctor immediately!
No you should not have a mammogram during pregnancy at all. If the doctors think there is a reason to examine your breast tissue there are other tests, like an ultrasound that can be done. (Besides double ouch!!) If you had a mammogram before you were aware of the pregnancy, discuss the possible problems with your doctor or midwife.
ask a doctor
It is difficult to comment with so little information. If you are worried see your local Doctor.
yes, you should visit a doctor
An ultrasound is ordered if the radiologist sees a suspicious area on your mammogram. Often this is dense tissue, but, still, you should follow up rather than taking the order casually.
Not neccessarily but it could be. If you are worried about it, you should go to the doctor and ask them. They should be able to tell you something after a few tests.
Very much, GO SEE THE DOCTOR!
Yes. Call your doctor/OBGYN.
Whether your insurer will require authorization for mammogram depends on their criteria for payment. Contact the number on the back of your insurance card for information specific to your plan. Most plans do not require authorization for mammogram.
It's possible that it is a wart or a blister. If you are worried about it, you should consult a doctor.