Good news.....and a question......

Hello ladies first off i wana thank kayla for creating this group and all you wonderful people for all the help thru everything....so my good news is i jst had my check up and everything went well doc said she expects to see me back soon with my bfp but put me on a low carb diet and a vitamin that boosts fertility. ......my que to you lovely ladies is about asthma and using an inhaler when pregnant or ttc is it safe?????