I had sex the other day the condom fell off and we didn't notice until a few min later. I didn't ejaculate in her . actually I didn't at all after finding out that it had come off . she says that her period is due to start in about 5 days from when it happened . we decided not to do the morning after pill but now are second guessing if we should have . we are both scared about this experience . what are the chances her becoming pregnant % ?
Thanks for your input.

Perhaps slight chances, perhaps none, and perhaps better than slight. A female can become pregnant from precum and since the condom fell off, you are not sure what all happened. If it turns out that she is not pregnant then perhaps you shoudl rethink some birth control. If you can only use condoms, at least get some spermicide, to decrease the risk of pregnancy.

so what your saying is 50-50
when would she be most callable of conceiving before her period or after?

when would she be most callable of conceiving before her period or after?

Both....Depending on a woman's cycle, if a 28 day cycle, she ovulates 12 - 14 days after the first day of her period....

So, if her period were on the 1st, she would be most fertile around the 13 - 15....Which would put you after her period and before the next period.

I do not know that information from memory anymore. Been too long a time since I had to worry about it. BUT you can get some information on the web on calculating ovulation and fertile days.

WebMD Ovulation Calendar (http://www.webmd.com/medical_information/health_tools/interactive/ovu_calendar.htm)
Ovulation Calculator Planning Cycle Get Pregnant Planner ParenthoodPlace.com Parenting, pregnancy and family community built by Parents for parents and prospective parents. (http://parenthoodplace.com/planner/ovulation.html)
Pinpoint Your Fertile Days With Fertility Friend Online (http://www.fertilityfriend.com/landing144.html?gclid=CMiT3o2K6JACFQ2lQAodz0_cZw)

This is not foolproof. That is my caution to using a chart like this but at least you and your gf would be more aware of her cycle and most likely time to become pregnant.

Yes it is possible, and do remember the condom by itself is still not 100 percent, they can often be holes or other accidents.

But even without completion they can still be enough sperm in the fluids to get pregnant