I am sorry to hear you are going through this.
I guess at this time its hard to tell exactly what is going on as its still a bit early to really tell what your dealing with. Once you know you will be able to better find out your options and make a decison about what to do.

I don't have alot of experience with classical c/s however the three I have seen have being fairly uneventful and recovery has being good. I think the risk to you would not be severe as in this day and age when they are prepared for things to go wrong they have everything ready to ensure things are treated as it happens. For example your more likely to haemorrage but they would have blood ready and drugs and devices to treat that as it happens. Also if your looking at delivery of conjoined twins you will be in the best hands possible to ensure the safest delivery possible.

As for the babies (if they are conjoined) I think a large part depends on where they are joined and if they share vital organs like the chest area (heart, lungs) or somewhere not as severe. Survival of conjoined twins and the health outcome really depends on this. So basically its too early to really know what is going on and what the best outcome could be. Fingers crossed they are wrong and they are not conjoined or else if they are it is an area that means they each have their own organs. I hate to tell you this but I think at the moment you are best to know what is possible and what is not. Obviously it is an area not many people have alot of knowledge about so when you know more I am sure you will be educated and given the best advise by people that know the most.

As for more pregnancies afterwards it would depend on how demanaged the uterus is from the c/s. If its fairly uneventful with time to heal then there would be no reason you could not have another child in the future. It would not be known though until after the birth of the likelyhood of another pregnancy or when it would be safe to ttc.

Thinking of you and hoping your babies are not joined. or if they are they are joined at the findertip or somewhere minor.