Hi doctor, I am 23 years old male don’t use to smoke neither drink had a question regarding paternity. On November 1st I slept with a women and after that she got pregnant and the date given by the doctor was 5th august but the child was born before the date that is 28th July.After some days I came to know that the women used to sleep with another man at the time.So I want to know about the chances of the baby that he is mine and also the medical evidence that supports it ,and the person who use to sleep is older than me and he also use to smoke.