The cause of ptosis is not necessarily genetic, but may also be other reasons, such as mutation and so on. Your parents' eyes are normal, and so is your sister, which means your eyes are not hereditary. Moreover, even if your husband's upper eyelid droops, the proportion of normal eyes of the baby is above 75%.

Therefore, the probability of upper eyelid drooping in your offspring is probably below 1.5625%. The probability of boys and girls is exactly the same in theory. When you say "drooping upper eyelid", do you mean drooping at the corner of the eye (commonly known as 8: 20 eyes) or what people usually call popular "inner double eyes"? The former is dominant. Maybe one of your grandparents has this kind of eye shape. If it is, it is atavism, and the baby is fine. If not, it is the mutation analyzed above. Never mind the latter, just let nature take its course. There is no need to feel inferior. I am worse than you. The left eye droops and the right eye rises, which is commonly called "high and low eyes", but I am proud of it. My own explanation is: "on the right is the perceptual eye, which always sees beautiful things;" On the left are rational eyes, always looking at the right things. "Your eyes are rational, and your thinking must be clear. Don't take the problem too seriously, just let it be.