My wife done with her period on 15 july 2016 to 21 july 2016. After that we had protected sex about 4 times. Last night (26 july night) we had sex. Firstly I inserted without condom, making 10-15 push after that I used condom and had sex and finish it off (i didn't ejaculate in her). On 27 july morning she said that she get bleeding and period started. My question are 1. Is it a normal period because 1 week before she had her normal period? 2. Is there any chance of pregnancy because Firstly I inserted without condom? 3. Can pre-cum semen hold sperm? Please I need help in emergency. Thank you waiting for your answer.