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humorist-workshop
Ovualation Dates
2 questions, how can you calculate the days of your ovualation period? And also can you get pregnant if only the head of the penis enters (without a condom) and you were starting your period the night after you had sex?
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Question 1:
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:
[Link](Mouse over link to see full location)
...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.
Question 2:
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.
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If you want to do this for birth control I don't recommend it. It rarely works. You have to keep all kinds of charts and you have to do it for at least 3 months in a row BEFORE you use it. I have included a search with the information. Most are geared toward getting pregnant but they all work the same.
Anytime a penis gets anywhere near a vagina there is a chance for pregnancy. Doesn't matter if its before, after or during your period. Even if he does not ejaculate there is pre-ejaculate. You never no when it will show up and neither will he. It contains sperm.
If pregnancy prevention is what you are after condoms and birth control pills or other device
are your best bet. Anything else is much to risky.
I have also included a site with useful info on birth control, and other things important for you to know about. :)
[Link](Mouse over link to see full location)
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