Scared I'm being deceived by my wife

I am 30 year boy I had married last year. at our first night my wife told me about her past. she said it has gone before 4 years. but I always scared that does she deceiving to me or does she lying. I asked her she said that she loves me lots she cant live without me. but I always think that if she is telling lie. she takes oath of our unborn child even she is ready to polygraph test. please suggest me what should I do. please please please help me

Your wife seems to love you. Has she done things that make you not trust her since you have been married? Her past was before you. Let it stay in the past. Love each other today.