What if we know it was from another man? What if it was forced, and the son married his mother B’Issur? Or is it not B’Issur? What if it’s a safek whether it was from IVF, though there vadai was IVF? What if there were then twins? What if there were twins but one was born through C-Section? What if there were twins, but a weasel went in and brought one of them out? What if a weasel brought one of them out and then a dog ate the weasel, went back in, and then the child was born normally?
