No, making her tired will not prevent the egg from being fertilized....The only ways that an egg will not be fertilized is if there is not one present...
Example: she is not ovulating
or if you took the proper measures to prevent it
example: used condoms

however from what you told us, it sounds like there is a very very small chance of her being pregnant...I would relax if I were you and I would be a lot more careful next time!

Thanks a lot. That really eases my mind. We did it twice but I really controlled myself and im sure I didnt do anything unless it slipped. What are the chances of her getting pregnant if she is ovulating...Is it still high with precum or is there a big difference?

Now did you put it in her for two seconds and not cum, or did you have sex twice and pull out both times?

Because both are different

there is always a chance of getting pregnant...However if you didn't cum inside her, and she was not ovulating then the chances is smaller

I stuck it in her twice, no sex, no finish. Im doubtful that I even precummed but worse case scenario I did. Is there nothing to worry about?

I can't say that there is absolutly nothing to worry about but I would say that there is a very very small chance

Next time, I sure would wear a condom. Otherwise, there is a good time that one of these times you can call yourself "daddy."

i had sex with my girlfriend and she was wearing a thin rubber legging and her pants... and she thinks she is pergrant we did two hpt and they are negative we did it on the 17 of feb and she missed her peroid on the 7 th march and now she is bleeding would it be implantion bleeding or not

Have her take another pregnancy test.

It sounds like she is not prenant. Negative tests and bleeding don't indicate pregnancy.

But take aochriss' advice and take another pregnancy test.

me n my boyfriend had sex while my 4 day of period was going on,he said that it was safe n there is a less chance of being pregnant but now its been a month i m not having my periods and m afraid may be i m pregnant

You could be pregnant. Don't listen to a guy when it comes to YOUR body. Take a pregnancy test.

Me and my girlfriend had sex in late febuary three times unprotected i didnt cum in her but 2 months passed on .Its may now and shes complains about being pregnant now because her period hasnt reach since a month .... we took a pregnancy test and she wasnt pregnant but she say she feeds her breast getting bigger, she also says she feel kicking in her belly even though her belly has gotten any bigger and her period still hasnt come yet. The doctor just said to wait but we have been waiting so long is there anything we can do to make her period come faster?

Your girlfriend is probably so scared that she's imagining things. There isn't anything we can say here that would be different from the doctor.

If she has had a period since you had sex, then she is not pregnant. How late is her period now?
Did the doctor say why her period is late?

One month and 2 weeks

If shes stressing too much her period is going to be late. Tell her the test was negative and she needs to chill thats the only way shes going to get her period back

me and my girlfriend had sex on the 3rd day of her period...it has been 3 weeks now..i didnt cum inside her though except only the precum...now she fears that she is pregnant...what should be done to confirm if she is pregnant and if she is pregnant what should be done to avoid it.??

take a home pregnancy test. If shes pregnant she has 3 options keep it, abort it, adopt it out. Dont stress about it unless she gets a positive test or she is late for her period. If she stresses it can caiuse her period to be late. Buy a hpt and take it and then if its negative now mellow out for a week or 2 and see what happens. She should be getting her period soon if shes regular so dont worry too much! best of luck--- Kyra

Yesterday, my boyfriend's birthday, we had sex. Without a condom. It went in but only for about a few minutes. We're not sure if he pre cummed inside me or not. What we ARE sure of is that he didn't cum in me. I'm freaking out. Badly. How can I tell if I'm pregnant? My period JUST ended about a few days ago. Also, what's the chance of me getting pregnant?

me n ma girlfriend had a foreplay be4 doing any intercourse,i tried to my penis in her vagina but i was unable to put in it as it ws very tight and finally i gave up. it was happened two months back but today she told me that i am getting wierd feeling and want a check up .
she had a periods also but then i just want to confirm that is she pregnant or not?