See a doctor.
Obstetrician
Woman's doctor is called GYNECOLOGIST.
yes they can and they can do it without you knowing
Yes they can. They use ultrasound.
You have to ask your doctor about that.
pregancy
Yes, but you always want to check with your doctor and get his/her opinion first.
I don't think so. I did not experience having a spotting in my two pregnancy period. If that happens to a pregnant woman she better consult her doctor.
OBGYN-Obstetrician/Gynecologist
Ask your doctor if you need it since they recommend caution to pregnant or breastfeeding women.
If you want to work out while pregnant, you should ask your doctor what exercises are right for you.