What are the chances i got my partner pregnant? had unprotected sex twice, did not ejaculate first time and pulled out before doing so second time 4-8 hours later. she is not on birth control and did not take plan b. unsure where she is on cycle.

Impossible to say: There is no way to give you a statistically accurate answer in this case. The "withdrawal method" in general has a failure rate of approximately 20%. But that rate is based on couples having sex regularly throughout the year, not just one episode. In addition, the chances of pregnancy vary quite a bit depending upon where she was in her cycle. Unfortunately it's possible, but not likely.