My dad and I both have asthma. I think it is hereditary to a degree, but not a huge risk. There area you live in and your nationality also both determine your chances of getting asthma, and you husband and kids will share those things in common as well. The quality of life with asthma is not bad, since it is highly treatable. It shouldn't be something that stops you from having kids, it's a good question though.
Yes, it is hereditary, it runs strongly on my mother's side and my brother and I have it. My mom, on the other hand, had eczema (which there's a link as well).
My friend's brother and sister have asthma, and she has lung reactions but not clinically asthma as of yet. Her youngest daughter was diagnosed at age 5 and the other one is heading in that direction.
That's true that asthma is treatable. My asthma is more intrinsic than extrinsic.....and I'm not clinically allergic. But, I had lots of sensitivities and chronic colds before it became full-blown.
I decided to NOT have children because of all the family inherited traits I had and didn't want to pass them on. I had enough to deal with and having kids would have just compounded the stress for me as well....it was definitely a good decision on my part. Do we regret it? Not once.
It's all a matter of perspective!
My dad has an asthma-like reaction to cats, with wheezing and lung tightness. My brother and my mother have "hayfever" in the fall, and my brother, when he ran cross country in high school, had asthma-like episodes. He never went to the doctor, but he did borrow my albuterol inhaler a few times (which did help him, but I don't know that he should have used my prescription). I have a grandmother who doesn't have asthma, but has had episodes of exczema and psoriasis most of her life. I do have first cousins with asthma and allergies as well. I think there is a family heredity factor involved.