I was only 9 years old when I was baptised as a JW and didn't really know what I was doing at the time. However, back then the JWs were still baptising in the name of the Father, Son, and Holy Spirit. So when I decided to be received into the Episcopal Church, I asked my priest about Baptism and he said that there was no re-baptism, that you were baptised or you weren't baptised. However, he recommended that I get a second opinion, so I visited another Episcopal priest who said basically the same thing. However, he said that if my JW Baptism bothered me, then I could be "Conditionally Baptised," a sacrament for those who didn't know if they had been baptised or not. Generally this was for adults who weren't sure if they had been baptised as infants.
Therefore, I was Conditionally Baptised, confirmed, and received into the Church. Nevertheless, I don't consider my JW Baptism as valid.