Placenta Abruption?

Mommyoftwo0327
Has anyone had an placenta abruption with their first pregnancy and fine with the second pregnancy? 
I had a placenta abruption my first pregnancy and had to have an emergency csection at 33 weeks and 6 days, she's a perfect little 3 year old toddler, but I'm scared of it happening again...I'm 26 weeks along with my baby boy(still in shock that it's a boy lol) anyways has anyone had a placenta abruption their first pregnancy and not the second? I'm already getting tightening around my belly and sharp pains in the vaginal area, Braxton hicks or?