What to do if you are short of breath while pregnant

I myself have asthma and I find it has been worse since I have been pregnant.  Other women I have talked to about it say they experience the same thing and I guess it is quiet common in pregnant women.  I didn't experience it with my first pregnancy like I am with this pregnancy.  If you are not getting enough oxygen then the baby isn't so you need to go see a doctor if you are experiencing this.  If you already have asthma and you have all the inhalers the doctor may ask you to get an attachment to your inhalers because this attachment is the only real way to get the inhalers to work properly.  It is called a spacer and often it is given to children with Asthma.