Babies less than 2 years apart?

If you have babies born less than 2 years apart, was baby #2 healthy?

I conceived my second child when my first was 9 months old. They will be 18 months apart. I've read that babies born less than 2 years apart have increased health risks like premature birth, low birth weight, autism, etc.

My husband and I are 26 years old and healthy. No issues with our first baby. We also did noninvasive prenatal screening and the baby is low risk for the common genetic disorders. This pregnancy was planned and I was taking prenatal vitamins several months before conceiving. I was also having normal, regular periods since I wasn't breastfeeding. I wasn't aware of the conception timing issue until after baby #2 was on the way 🤷🏻‍♀️