I am autistic with adhd and a history of abuse and trauma and I would absolutely contact an abortion service just for the counselling. It is the most logical and rational thing to do.
They are unbiased and I have used these services and they will help you make an informed choice. I contacted them and was offered counselling within 48 hours of my original phone call.
I've already posted about how you've centered yourself and your wants. I stand by it because the reasons you'd be bringing a baby into this world are centering your self, when babies should come into this world with themselves centered first. You know that neither of your existing children will cope for very different reasons. How are you going to overcome that, genuinely? If you have an answer for that then perhaps you can make it work.
There are a lot of what ifs as well. What if your child is born and has complex needs? What if they are born and have congenital defects? What if the demands of looking after a newborn, then a baby, then a toddler on top of your emotionally and physically developing teenagers doesn't fulfil you the way you're expecting? What if you've got rose tinted glasses on about this?
How will you cope if one or both of your existing children do not adapt? You can't force them into any sort of therapy and you can't force them to interact.
What if the needs of each child conflict, which they do in any multi-child household regardless of need or disability? What support network can you build for yourself right now?
Are you looking for a permanent relationship? Do you think it can work with either XH or new man? I don't as I've already expressed in my last post but do you? Assuming the answer is no, do you think you can fulfil the want of a permanent long term relationship with 3 kids, 2 different dads, and over a 3 hour round trip to facilitate their relationships with their parents on top of being thoughtful and present partner to someone who would want to be a thoughtful and present partner to you?
What contraception will you use going forward? You've stated you have ADHD and I personally historically know that diagnosis and the contraceptive pill don't mix very well, it requires consistency and routine and planning and executive function when there are lower demand options available like the implant and the IUD.
I might sound like a very harsh person. I am blunt, and pragmatic but I don't lack empathy, and right now I have a lot of empathy for your children and believe it or not, for you because I am asking you to think about these questions, to come up with solutions to the problems you've got so you can make a choice that you and your family will have to live with.
Who would be at the birth? Who would look after your twins? What if, like me and many others you end up readmitted with post birth complications for either you or your baby?
You can't do this without support. And I can't see XH accommodating his children while you go off and have another man's child. He doesn't have the facilities to do that anyway.
What about school runs? Your children are at different stages in their lives, they vary in independence and maturity. Can they take themselves to and from school? Are they dependent on you to get there and back? What about accommodating their relationships with friends? How will introducing a third child impact this?
There are so many questions that need answers. Please contact an abortion service so they can help you answer these questions with properly trained counselling and acknowledge that your diagnosis may mean you are likely to make impulsive dopamine spiking decisions and thus you do need guidance from external sources which is what they are there for.
All the best to you OP.