How to Calculate Safe Period to Avoid Pregnancy

by admin on March 10, 2010

In order to calculate safe period you should know little bit knowledge of Menstrual cycle and the time period for which ovum and sperms survive.

Life of Ovum is 48 hours after ovulation while life of sperms is four days in female genital tract.

Ovulation is the process in which ova is shed from ovary so you should also know the date when ovulation will take place in your wife.

To Calculate the ovulation this method is preferred

1. Temperature Method: women’s body temperature is recorded every morning, just after awakening, it should not be taken after drinking some tea or brushing teeth and plotted on a graph paper daily, the curve comes in shape of a valley between two mountains, see the graph curve from infertility rocks. The temperature is low during actual menstruation, subsequently it rises, at the middle of cycle there is fall in temperature followed by a rise. This rise indicates ovulation has occurred.

Since sperm life is 4 days and ovum life is 2 days so if person copulates before 4 days to 2 days after ovulation, she will conceive pregnancy and this period is known as Fertile Period.

Rest of the days other than fertile period is known as SAFE PERIOD.

There is one more way to calculate the Safe and Fertile period read below

Menstrual Cycle varies from 26 t0 31 days from female to female. So safe period is calculated as

Longest cycle days minus (-) 10 days gives you last day of fertile period.

Smallest cycle days minus (-) 18 days gives you first day of fertile period.

for example if menstrual cycle of your wife varies from 28 to 30 days

so 30-10= 20 th day is the last day of fertile period and 28-18=10th day is the first day of fertile period. And rest other days are Safe Period.

Watch out the video on youtube below explaining how to calculate safe period to avoid pregnancy.

For Further Reading :

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{ 95 comments… read them below or add one }

srivanth July 29, 2011 at 3:56 am

hii..
doc My wife got peroids on {19th july2011 -23rd july 2011} of dis month.. & we had unsafe intercourse on (26th july 2011 )… is dis safe r not..?
2) thing last month she got period on (08-06-2011 to 12-06-2011) n last mnth
june 8th to diz mnth july 19th the gap of the cycle was {42days }..
diz 42dys of cycle will effect on dis mnths cycle…?
every mnth she has the cycle of 30days..only last month of june she had the change in her cycle..plzz suggest the safe periods ..& we r not ready 4r d kidss….

Reply

admin July 29, 2011 at 8:48 pm

visit gynecologist in your near area to discuss on disturbed cycle.

srivanth July 29, 2011 at 4:06 am

hiii…doc
my wife got peroids on (19th of july2011 to 23rd of 2011) and we had sex on 26th of july . i ejaculated inside her . ..& after 5mins she washed her vaginal ….will she get pregnent? her cycle is of 30 days….
plzz can u suggest safe period …

Reply

admin July 29, 2011 at 8:47 pm

you can not apply the simple formula given in article, if you can not give your 2 minutes to calculate safe period, why should we.

Pooja February 28, 2012 at 1:49 am

Jus a masturbation without inserting a finger will cause hymen break?

Reply

admin March 5, 2012 at 8:10 pm

Sure

Pooja February 28, 2012 at 1:51 am

Hello Doctor..i am a second year medical student..i have a doubt..will jus a masturbation will cause a hymen break?i jus used to rub my vagina…will I
Bleed during my sexual intercourse?

Reply

Pooja February 28, 2012 at 1:54 am

Can you pls reply me in my mail sir

admin February 28, 2012 at 3:33 pm

Since you are medical student, you know anatomy of the region, you can also guess the answer, what do you think? reply

Pooja February 28, 2012 at 1:55 am

thanku sir

Reply

Supritha March 2, 2012 at 8:21 pm

Hi Doctor

I usually get my periods on 1st or 2nd day of the month (Ex 1st feb or 2nd feb) n this time i have got my periods on 29th feb itself, b4 getting periods i took postpone tblet called promilut which had no affect to stop my periods, so my ques is will it effect my mensus cycle in future date??? Also can u let me know when is my safe period to have sex with my hubby, he use condoms sometime n never he releases his sperm in my vagina to avoid pregnancy…is this the right
way???
Please please pleas reply to me..

Reply

Rahul March 4, 2012 at 11:37 am

Sir, i am B.tech student .I usually rub my pen*** .Does it effect my Fertility Power?

Reply

admin March 5, 2012 at 8:08 pm

could not understand your question.

rohit March 6, 2012 at 8:07 pm

my wife got peroids on ( 24/02/2012-29/02/2012) and we had sex on 5/03/2012 . i ejaculated inside her . ..& after 5mins she washed her vaginal ….will she get pregnent? her cycle is of 30 days….
plzz can u suggest safe period …
actually am getting confusion dr,,,,,,,,,,,,,,,,,, hope for the positive reply
thank you

Reply

robin March 8, 2012 at 1:15 am

hi doc.
my wife had period on 18th feb 2012 and we had intercourse on 7th march night without condem, please tell me whether she will get pregnet or not,plz answer me

Reply

CR Kumar March 9, 2012 at 12:59 pm

hi doc.
my wife had period on 12th feb 2012 and we had i* on 7th march night without condem, please tell me whether she will get pregnet or not,plz answer me

Reply

admin March 10, 2012 at 1:48 am

nothing can be said so quick.

khushboo October 25, 2012 at 5:44 pm

hello i had my period last month is 24 oct and 23 sep. my husband fingered me with semen but 24 sep. i got my period but this month it is 25 i had not my period can i get pregnant

Reply

paukarmuh November 28, 2012 at 9:22 am

hi.doc
exactly after how many days since the last day of periods can one still have unprotected sex and not get pregnant?

Reply

sameer December 25, 2012 at 1:14 pm

hi doc.
my wife had period on 10th dec. 2012 and we had i* on 20th dec. night without condem, please tell me whether she will get pregnet or not,plz answer me.plz tall me

Reply

ker May 8, 2013 at 5:05 pm

i had my menses on 31st march – 3rd april and i had sex on 21st april and i took postinor 2 on 23rd. later on 27th april i have been having unprotected sex. my menses too has nt come. i did the test it was negative

Reply

beatrice May 26, 2013 at 5:08 pm

i had my mensies on d 26 of march,while d nxt mnt april it cam 23 den i had sex on d 11 of april i took postinor2,dat sam mnt 17 nd 18 i had unprotected sex but he did not realease on me..is it possibl dat i may b pregnant

Reply

beatrice May 26, 2013 at 5:12 pm

had my menses on 23 april nd i had sex on d 11 of may but i tok postinor 2 dat sam mnt 17 nd 18 i had sex but he nva releas on me,cud i possibly b pregnant

Reply

olayinka May 28, 2013 at 11:37 am

I had my last period on the 26th of may 2013,on the 27th of may 2013 I saw little blood and I had sex on the same day bt I had the sex in the evening. Bt my previous menstration started on the 27th of april 2013 and end it on the 1st of may 2013.I Don’t know how to calculate my ovulation period. And my fertile period. Is there a probability that I might get pregnant?nid d reply urgently.

Pls reply to my mail box: itunuhassan@yahoo.com.

Thanks

Reply

chintu June 29, 2013 at 7:34 pm

Hi my periods started on 25th May 2013 and it lasted for 3 days, and I had sex with my husband on 30th may 2013, whether I am safe, pls respond, I am really scared coz I got 19 month baby and I am 41 year old. pls respond.

Reply

Safe Period Calculator July 9, 2013 at 8:35 am

You can calculate it by using the website http://www.safe-period.com/

Reply

vandaras July 10, 2013 at 2:20 pm

please doctor,i saw myperiod on 20th n it stopped on 29th,is it good or bad and when is my safe period?

Reply

parth July 19, 2013 at 12:42 am

my girlfriend last period date was from 11th to 16th of last month (june)… we had a sex on 12th of this month (july) … without protection .. but i ejaculated outer but she’s period is not started yet… is ther chance that she is pregnent ? i worried about that..please help..

Reply

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