Shortness of breath, light headed


11 weeks today. My husband and I were at church this morning and all of the sudden... I became short of breath, light headed, nauseated and woozy. I had to sit down. As a nurse I know this can be caused from dehydration, low blood pressure, and the church was very stuffy. I felt better after mass, and I’m going to try and drink more water today but it made me concerned.