Hello. Congratulations on your pregnancy!
The medications you're taking are either generally accepted as safe during pregnancy or their safety during pregnancy has not been established. Whenever medications are prescribed during pregnancy, patients and their doctors have to decide if the benefits of the drugs outweigh the potential risks. If you have asthma
, it could actually be riskier to NOT use your inhalers: it's generally safer for pregnant asthmatics to use their asthma medications than it is for them to have ongoing symptoms and/or frequent attacks.
I suggest you talk to your doctor about your concerns. He/she is familiar with your case and is more qualified to address any specific issues.
Good luck with your upcoming delivery!