You sound very unwell lovely. I would say more counselling personally.
I don't know if this will help or not. Please understand I am saying this to try and help, this is not a 'consider how lucky you are' thing as you are obviously struggling hugely.
I had a termination at 22 weeks in jan. we found out fairly late along that our much planned for (as is your baby) dd2 had Edwards. Edwards is incompatible with life (especially the abnormalities our dd2 was showing) so our choice was termination, continue with a likely stillbirth at some point, if she made it to term watching as she slowly died in lots of pain.
I tell you this because ours was a very black and white situation (as far as is in this cases) our dd2 was going to die at some point.
We decided on a termination. I know logically that we have don't the right thing, I truly believe that. However, 4 months on I am still wracked with guilt, my illogical emotions tell me I didn't give her a chance. I remember turning up to the hospital to have the injection to stop her heart and hoping that they would tell me shed died.
I am still in a very bad way dealing with the loss of our dd and the fact that I did it.
I tell you this because we pretty much had no real choice. It was a choice of degrees and doing what we could to save her suffering.
You are in a different position. I would never tell you what to do or what would be best for you. I just wanted to show you some of the distress terminating a very unhealthy, 'unviable' baby has caused for us.
There is a very, very high chance your baby is absolutely fine.
I really hope you manage to find a way through this, it sounds like you are suffering horrendously