Asthma and Pregnancy

I’m around 5 weeks pregnant and my allergies and asthma have been so bad I use my inhaler multiple times a day and use the nebulizer 1-2 times a day. I went to the hospital and they wanted to do a chest X-ray but I’m still in the first trimester. I don’t know if I possibly have bronchitis or pneumonia because these medications only work for 3-4 hours during the night. The pharmacist assured me I wouldn’t get pneumonia if I took the shot for it...

Please help!