Everything below is In My Opinion.
Autism is not a defect. Considering it one is highly problematic IMO. Of course, only you can decide how you feel about your autism. Same as anyone about anything that affects them.
Are there people with autism who feel it would be a terrible burden to pass down to their kids; most certainly. Are there others who feel it's not even something to be concerned about as a reason not to procreate, most certainly.
You're somewhere on that spectrum. Kind of like how you're on the autism spectrum. Just like only you can decide how you feel about your autism, the same goes for you thinking about passing your genetics down to your children and having them possibly inherit a version of your autism that becomes their autism.
It's not a curse. Sometimes it's a bit of a burden, but no parent can know how their kids will come out. No one.
We don't live in a Gattaca society (yet), so none of us have to actually face a question of eugenics. I fear a day when people can decide to stamp out all human spark and the magic that comes from the randomness inherent in natural genetics just because "I want my kids to have the best possible chance."
Might your kids have autism? If you have it and your partner doesn't, then they might, or they might not. But either way they'll have two parents who hopefully are around throughout their childhood to help them figure life out. Autism isn't an automatic "You Lose" button, no matter what Neurotypicals want us to believe.
Beautiful things come from randomness, from different perspectives, from people who see life through the unique lens that they bring to it. Autism is one of those things. I love how autistics are so often much better at braving the less traveled road because they're usually less likely to hang their identity on the perception of sameness NTs seem to cling to with white knuckled desperation.
Every parent has bad days. Every parent has good days. Every parent has challenges, strengths, weaknesses, failures, and successes. If a parent tries, if a parent is honest and involved, if a parent worries over the "right thing" and how to help, they're not a bad parent.
Some parents are bad parents, but being bad at meeting people, at recognizing social body language, at having difficulties interacting with people, that doesn't mean you're a bad parent. It just means in those areas you have to work harder, and might have fewer answers for anyone, including your kids, on those subjects.
No parent is perfect. Zero. None. It's a fantasy. You focus on the things you're good at, and lean on your spouse for help with the rest. They do the same in return. And together the two of you look for help in the things neither of you are strong in. That's being honest, that's being involved. It shows you care, that you're trying.
Honest involvement will go a long, long way towards finding sufficient answers to many of life's issues. Perfect answers, no. Usable ones, usually, sooner or later. Bad ones, often a bad answer is just one that hasn't been worked on long enough; more honest effort can usually bring it to a more useful level.
Don't let paralysis from not having perfect knowledge of the future keep you from your life. Shit happens and you roll with the punches. There is no perfect. But there's a lot of good in the world, even if can be annoying to wade past the muck to get to it sometimes.
After all, you made it this far despite some muck. You must be good too. That's a fine start for your kids. You already know how to navigate swamps. Think of how that can help them.