A woman ovulates, roughly, 14 or 15 days from the beginning of her last period; however, if your period is not a perfectly exact 28 day cycle then this can be thrown off. Ovulation lasts a few days. Your body's temperature slightly changes during this time and you secrete more cervical mucus to ensure there is enough for sperm to travel in properly. During this time sperm that entire your body are able to live slightly longer than usual. Sperm typically can live in a woman's body for 5 - 7 days, though it is not unheard of to find a few still alive at the two week mark.
A good way to keep predict your ovulation date is to use a calendar to keep track of your menstrual cycles. I, personally, like to use MyMonthlyCycles:
...since they can send me an alerting emailing that I may possibly be ovulating soon, when my period is predicted to start, and include helping tools to better track my cycles.
You should also take your basal body temperature each day, preferably the first thing in the morning. When your temperature slightly increases you may be coming closer to ovulation.
You can also purchase OTC ovulation testing kits from stores like Wal-Mart, Target, or your local pharmacy. All this requires you to do is to urinate a small amount into a cup the first thing in the morning, dip a stick in the urine, and wait for the results to appear. Typically, one line means you aren't about to ovulation and two means you are very close to ovulation (within the next 36 hours, typically).
Some women, especially with the increasing amount of toxins we are now exposed to, ovulate very late in their cycle or very early. Sometimes women don't ovulate at all while other months they may ovulate 3 times or more. It's almost unpredictable if you haven't been charting it for an extended period fo time. This being said, it is not a good idea to jump into using this sort of "birth control method" right away but let it grow into something you can use after a year or more of closely charting your cycles.
Any time a penis comes in contact with your vagina (even if there is no insertion) there is a risk of pregnancy. Pre-ejaculate is almost undetectable, especially in comparison to a regular ejaculation from a healthy male. A full ejaculation contains as many as 100 million sperm at a time, and sperm within pre-ejaculate can be as many as a few million. It only takes one to fertilize your egg.
This being said, coupled with the fact that you may or may not be a late ovulator, you very well can become pregnant the day before your period begins. You could become pregnant at any time of your cycle, actually, and here is why:
Women do not get pregnant the same day of intercourse, believe it or not. After you have sexual interaction the woman actually does not instantly become pregnant--it can take days before the sperm find and fertilize the egg and then another 6 - 10 days for the egg to actually attach to her uterine wall. Sperm can live in her body for a long time--they've even been some found alive in a woman 2 weeks after being ejaculated inside of her! Menstruation doesn't seem to play a part in killing sperm, as it tends to help lubricate the uterus to make it an easier travel up to the fallopian tubes to the egg!
This being said, it could take WEEKS to actually become pregnant after one sexual encounter. Kind of scary, isn't it?
Condoms help to prevent pregnancies to about 88% with typical usage. 88% of protection is better than 0% of a risk. Condoms do NOT protect at all against the transmission of STDs and STIs so make sure to have yourself and your partner tested regularly. [ Peeps's advice column | Ask Peeps A Question ]
beauteful_withn answered Friday December 3 2004, 9:47 pm: hey hun, it really depends on when you ovulate. you are supose to ovulate in the middle from your period to your next. but sometimes its different. i happen to know someone who ovulates just before they get theirs. you usually can feel it. the chances are moreso less, however there is still always that chance. [ beauteful_withn's advice column | Ask beauteful_withn A Question ]
AnGeLtHuGsTa answered Saturday October 2 2004, 5:21 am: You can still get pregnant and get your period! But if you have sex right before your period, during your period or about a week after your period, your chances of getting pregnant is actually low...but there is little chance you could've gotten pregnant...Did he ejaculate in you? or did he take it out, then ejaculate? You have to be really careful about this, even if he took it out first, theres pre-cum! Most guys don't know or cant feel it!!! ALWAYS use conterceptive, condoms, birth control pills...especially condoms, you dont want an STD or HIV? right? [ AnGeLtHuGsTa's advice column | Ask AnGeLtHuGsTa A Question ]
pinklemonadestand answered Friday October 1 2004, 4:07 pm: you can't get pregnant unless you skip a period! So your not going to be a mommy anytime soon!
alisonmarie answered Thursday September 30 2004, 2:47 pm: Well, the chances are that you are not pregnant. Your period is the shedding of the egg and uterine lining, which is what the egg would burrow into once it was fertilised.
That being said, there's still a chance you're pregnant; there is also a chance you have contracted an STD. STDs can be a mild inconvience, or they can render you infertile or dead. Some of them never go away and will affect every relationship you have in the future.
Time to go to the gyno for contraception, though you'll need to have yearly appointments now that you've started having sex. The younger you start having sex, the higher the chances for cervical cancer...so it's very important to get regular pap smears.
SwEeTLiLhUnNiE answered Tuesday September 28 2004, 9:46 pm: dont listen to wut the others are sayin.. say you can have unprotected sex tonite and then tomorrow you start that does not mean that you are not pregnant. It takes two weeks for conception and also two weeks before you can find out if you are pregnant. So you will just have to wait a lil while to find out. **You also can still be pregnant if you are on your period** hoped i could help [ SwEeTLiLhUnNiE's advice column | Ask SwEeTLiLhUnNiE A Question ]
pRiiNcEsS_bRyT answered Monday September 27 2004, 11:52 pm: uHmM dUmBaSs iiF u GeT yEr PeRiOd YeW aRnT pReGnAtE...
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