I need your help

Marie
Okay, so my husband and I have been using ovulation strips to get pregnant. We got pregnant once but ended in mc. 13 days ago we had sex four times (four days in a row) during the time my ovulation strips were positive. I tested this morning (using first response) but it was negative. I am three days away from my period. I do not have sore boobs but have been cramping all week. I feel like I am / should've pregnant. Is there any hope? If not, please tell me. I do not want to think I may be when I am not. I need your advice please.