I Am. 27. Had Miscarriage At 14 Weeks On 19

I am. 27. Had miscarriage at 14 weeks on 19 Nov, 2012 reason : short cervix. Became pregnant in feb, 2013, but before delivery in OCT 26 2013 I had 3 threatened miscarri age, cerclage,n progetrone shots.In Nov, 2014 I was diagonosed with blighted Ovum at 11 week . Now I just testeed positive for pregnancy but I am having cramp, the pregnancy symtoms which were strong earlier have all disappeared. Help me I don't want to loose this baby.