If A Man And A Woman Have Sexual Intercourse And He Puts Sperm Inside Her, And She Is Expecting To Come On Her Period On A Certain Day And It Never Comes. Could She Be Pregnant?

Yes. There is increased probability of pregnancy for unprotected sex especially if done during her ovulation period.  Sometimes, she still gets pregnant even if it is her safe period. 
 
 

Any time a man ejaculates inside a woman of childbearing age she can become pregnant. If a woman misses her period and a man has ejaculated inside her that month there is a good chance she could be pregnant.

Yes.  When you have missed your period you need to take a test.  If it comes out negative and you still don't have your period re-test or take a blood test it is more accurate.  If you are not pregnant and don't want to get pregnant use birth control and condoms both to be safe so you don't have to worry about this in the future.  There is also the morning after pill you can go and take.  It is too late now though, I am sure. 

1. No She will not be pregnant.

You sure can get pregnant but it is very difficult to understand when you ovulated so take a test if negative and no period retest a week later good luck

I belive that you shud go to a docotor and check your self out. I had tha same promblem I was five days late and have stomach pains and it turned out that I was prego! I was the happiest girl in the world because I was haveing a baby by the man I truely love nd care about!

Yes he can pregnant