Oh my, you are truly such a strong mama, carrying triplets with a heart and lung condition, that is not easy at all, and your husband sounds like such a wonderful support. Please do make sure you are under very close care of your specialist doctor throughout this pregnancy, and if you ever feel any chest discomfort, shortness of breath, or anything feels off, please go to the hospital straight away without waiting. Wishing you and your three little ones all the best, you've got this!