I feel that you are already pregnant. You are looking towards this marriage with uncertainty. That means your a little washy washy about it and indecisive. You’re going to continue having these doubts and questioning if it was the right thing to do. But you don’t want to be alone. Those questionings are coming from doubts within yourself, they’re not actually legitimate concerns because you are just getting cold feet. That’s all, but just remember, without him, where would certain things be. It’s safe to stay on a steady course and changing your mind sometimes has negative impacts on your self esteem. I would get a pregnancy test, if you are pregnant, take that as something to build your relationship and family. You will undoubtedly have a stronger bond with him.