Terrified ? pregnant after blighted ovum..

After a miscarriage due to a blighted ovum in June I'm finally pregnant again.. But I can't seem to get happy about this one.. I'm so scared I'm going to lose this one too! I'm only 4 weeks and 5 days with little to no symptoms yet.. I don't know if I can handle loosing another one, my hubby was destroyed the last time and it almost made him want to give up trying.. Any words of encouragement?