Feeling So Scared

I have only been a member of this site for 6 weeks now. It has been the hardest six weeks of my life. From finding out that I was having a miscarriage to finding out that I am expecting so soon afterwards leaves me so scared. My husband won't talk about it because he thinks that I am nuts. I don't want to tell my family because I don't want to hear their negative comments if something should happen again. I feel so alone. I am so happy and want to spread my happiness but am left feeling like I did something wrong. I feel like I am disrespecting the memory of the child I lost since I conceived so quickly. I feel that my child will feel unloved thinking that it is replacing someone else who was lost. I am so alone, I am so scared all I need is for someone to tell me everything will be alright.