The biggest problem I had parking when pregnant was not walking from the car to the store/office whatever as opening the car door far enough to get out without hitting the next car I would park at the end of a row or next to a chevronned space where possible. We have tiny parking spaces here and I was carrying an extra 30lbs. The only exception was one of work's remote offices where I regularly had to park a 15minute walk away, then walk in uphill with a wheeled laptop case. The office manager took pity on me and offered me an unused disabled space, which I was hugely grateful for.

It annoys me more when people with no children park in the parent and baby spaces because they can't be bothered walking. Those spaces are wider for a reason, and it's not for big cars.