But when her boy was just eight-weeks-old she realized something was wrong. He wasn't smiling and his eyes were "jumpy".
Irving learned that her son had toxoplasmosis, which resulted in brain damage and blindness. The mother was even more upset to learn that she had unknowingly passed the ailment on to her child when he was in the womb.
And now she's warning other expectant mothers to be extra vigilant so they don't do the same.
Toxoplasmosis is caused by a parasite found in and around your home - in the soil in your garden, in your cat's litter box, in undercooked meat and even on unwashed fruits and veggies.
While most healthy people can fight off the bug, it's particularly dangerous for pregnant women because it can harm an unborn child. Toxoplasmosis is also a risk for people with compromised immune systems.
Irving encountered this bug during pregnancy, but she's not exactly sure how. The parasite is found in the feces of outdoor cats, but she doesn't have a pet.
"But it can be something simple like not washing your vegetables properly," she said.
Pregnant women are advised to wash their hands thoroughly after playing with the family cat, after spending time in the garden or handling meat, fruits and veggies.
"If I had known to be extra doubly sure not to eat any partially undercooked meat because it could cause permanent brain damage to your child, do you think I would have been more cautious? You bet I would have been more cautious," Irving said.
Dylan received immediate treatment after he was diagnosed and he's made a remarkable recovery and is now a happy 22-month-old. But despite his progress, he will always have mental challenges and will likely remain legally blind.