I haven't gotten a positive yet

Crystal
But I feel like I'm pregnant. I found I was pregnant may 9 2015 and lost it the 13th(my25th bday). I've had two successful pregnancies (5year old little man and a 2year old little lady). I can't figure out what I did wrong or what I could have done to avoid it. I'm scared i might be pregnant I don't think I can handle another loss