Far out! What a complicated situation! Usually I would not post to a thread like this one... but... I felt like I had to.

For me personally, I am a VERY conservative person & also believe that it is better to have children in a loving relationship (not always possible, but my personal opinion). I understand your anguish in wanting to have more children & your time running out given your medical circumstances, however I think you need to think about this more from a logical POV, rather than an emotional one. The reason I say this is b/c emotionally I think the argument is stronger to have a child (due to your medical situation) rather than what is the best thing to do for you, your child & the Dad to be involved (whomever this will be). I strongly believe (sometimes I need convincing ) that things happen for a reason & whilst for example; IVF is not an option for you atm, what is to say that when either things improve with your DS Dad or you meet someone else whom you can afford to do IVF with? I know this is easy for me given I am married & in a stable relationship, however I think when deciding to have another child, it has to be more than because I want two.... IYKWIM? I hope this is not too harsh (I noted your first paragraph) & if you want my post removed, let me know I will delete it. Best of luck with your decision.