Asthma and severe allergies

So I went to see my doctor yesterday and we talkt about my medications and when it will be a good time trying to concieve. Since I have severe pollen allergies and the season coming up there will be no trying until august/september due to medication. I’m pretty dissapointed but also relieved to know how all the meds I need to be able to live a ”normal” life during that season will effect an embryo.