What do I do??

edit: it has been years since it happened and even now it feels like a dream. my family had pushed this event to the back of their minds and went on acting like a normal family. he has been there all this time and once the wedding came up even though I didn't want him to be he was there. I didn't want people asking questions and bringing up scars that I left behind. yea it was fucked up that he is still in my life and yea I'm a little fucked up to have to deal with this shit but it happened and I don't know how to get over it and I don't know how to tell my husband. I am literly panicking because once I tell my husband why my stepfather and I don't get along very well then everything is going to hit the fan. am I wrong to wish that by some miracle my mom would devorice that man and I wouldn't have to deal with him anymore? also i dont blame my mom for not knowing what to do back then. there was no evidence it was my word against his. I am not a very strong person and yes I run away from things because my mind can't mentally deal with it but I'm asking now how to get over it and how tell my husband. I was raped multiple times by my stepfather when I was younger. I don't remember when it started and don't remember when it had ended. all I know is that it all happened before I had my first period. fast forward a few years into middle school someone saw that I was selfharming and I went to talk to the nurse. I eventually told her what happened in my past and she reported it. this memory is all a blur but I do remember that he passed a lie detector test and a rape kit was done but of course there was no evidence because it happened years earlier. I eventually had to go back living with my rapist. once I turned 18 I moved out into a friends house and met my future husband. After I moved out my mom and I connected more and we have a close relationship now. There was even a time where she was thinking of getting a divorce and I couldn't help myself hoped she did. Even while she was there crying I was happy to maybe finally getting him out of my life but it never happened. I got pregnant and had a little boy. next was our wedding. Then it hit me I was expected to have my stepfather walk me down the aisle and to have a father daughter dance. I compromised to have my mom and him walk me down and I picked the shortest song I could find for the dance. I had told my husband that we didn't get along very well so I didn't want the dance to be long. He still doesn't know about what my stepfather did. Shortly after our wedding we find out we are expecting baby number 2. We are so excited and even more so when we found out the baby was a girl. Then panic sets in. What if he goes after her? I would never forgive myself if anything happened to either of my children. And I don't know what to do. Help me please...