Yes, you can do it. It will work out whatever you do, because it has to and there is no simple answer - each path takes you somewhere you'll have a few things to deal with but one is far sadder imo...though I can't tell you what is best for you!
(am flight btw)
I did feel exactly like you describe...like NO decision was the right one, I had no opinion almost, I was in a whirl and everything seemed intractable and utterly confusing.
People were saying 'don't have the baby, it'll be bad for you, for your son, for all of us -we'll have to support you' and if they didn't say it, they implied it. And worst of all I knew they were right - and I hated taking their support.
But it was Ok in the end. My parents do love my second child and I manage looking after them both without any more intervention or support than I had before. In fact, it seemed that as soon as I had made the decision, it gave me new strength as a parent - I somehow felt as though my lifenow was mapped out, I was actually a proper mother for the first time (strange!) and everything else had to make way for the new priorities which were my children.
It felt like a proper job rather than a hobby / mistake / accident iyswim!!
Suddenly I felt like a mother and I would have done anything for my little ones. It was a really positive thing.
But initially when the option of abortion was still there, I seriously had no idea what I ought to do or what I should do. I didn't have a clue how to make a decision like that under so much pressure.
In the end I gave up trying, and let my heart rule my head - I rationalised that my body was geared up to protect the tiny thing in it, and who the hell was I (or anyone else) to stick a spanner in the works and stop that whole project that was going on.
It felt intrinsically wrong. My instinct was to do nothing though, not to kill the baby, not to get on the train to have the abortion, not to talk to 'detractors'.
I just let nature decide and rolled with it!
You could even view it as though there is no option. once conception has taken place there isn't really any reason why you should be forced then to take the decision of whether to destroy what is there or let it continue to grow. I think since the advent of abortion as a common thing, people kind of assume that you still have the responsibility (or choice, if you like) about whether you do it or not.
To my mind it was pretty much a fait accompli I suppose.
I don't know if any of that helps but I hope you are feeling Ok this morning xx