Talk to Gynecologist on Gap For Conceiving

I delivered my third baby in my seventh month, I had PPROM, it was a complicated pregnancy, I had spotting in my third month that continued for two months(reason was placental hanermerohage but ut resolved on its own),than my water broke in 6 month, and I delivered a baby boy at the very starting of seventh month that unfortunetely didnt survived, he passed away after a stay of four days in nursery, my first two pregnancies were absolutely normal, my main question is how long should I wait for conceiving again, and shall I be at a high risk of prom in my next pregnancy as well?