Pregnancy conception period

Breast Pain48% of women experience breast pain and tenderness as a symptom during week 1 of pregnancy.
There are only a few days (typically 6) each cycle when you can get pregnant, the days leading up to and including the day of ovulation. Your ‘fertility window’ is the period of about 6 days during your menstrual cycle when it is possible to become pregnant from unprotected sex – hear more about how this works in the video from Professor Bill Ledger.
The graph below shows the estimated likelihood of conception on the day of ovulation and the 5 days before.
As we said above, ovulation usually happens 12-16 days BEFORE your next period starts, so the timing of ovulation depends on your menstrual cycle length.
FERTILITY AWARENESS METHODSFAMs include all family planning methods based on the identification of the fertile time.4 This knowledge can be used to plan or avoid pregnancy. If it isn’t fertilised the lining of the womb is shed (the egg is lost with it) and your period begins. So to get pregnant, it’s important to have intercourse on your fertile days and if you want to find out when you’re most fertile, it’s important to get to know your own body and your own personal menstrual cycle. During family planning consultations, fertility awareness improves people's understanding about how each method of family planning prevents fertilization taking place and how if the method is not used correctly, then the risk of pregnancy will increase.

For example, how the combined oral contraceptive pill prevents ovulation and makes the cervical secretions thick and impenetrable to sperm as well as understanding how fertility can quickly return if pills are not taken as directed.3This chapter focuses on how fertility awareness can be used as a method of family planning, either to achieve or to avoid pregnancy. Probability of pregnancy relative to ovulation after intercourse on a given day of the cycle in women of different ages. 1399–1403, 2002Further research on the probability of conception on each day of the cycle is required to more clearly define the outer limits of the fertile time. These indicators may be used alone to identify the fertile time but are more commonly combined to improve the effectiveness to avoid a pregnancy.MONITORING BASAL BODY TEMPERATUREThis section describes the monitoring of basal body temperature as a single indicator to identify the fertile time.
For couples planning a pregnancy, temperature recording is of no value in predicting ovulation. All the conceptions occurred during the fertile window extending from 5 days before to 1 day after the temperature rise. The chances of conception approximated to zero, 6 days before the day of the temperature rise, and 2 days after the temperature rise (Fig. Secondary analysis42 of the data on cervical secretions from a large multinational European fecundability study assessed the relationship between the days predicted to be potentially fertile by the TwoDay Method and the day-specific probabilities of pregnancy based on 434 conception cycles. The authors concluded that if intercourse occurs on any given day relative to ovulation, the presence of cervical secretions was associated with a two-fold increase in the probability of conception.

Palpating the cervix is rarely used alone as a single indicator, but the cervix changes are of particular value to women with long cycles, during breastfeeding when observing returning fertility, and during the perimenopausal years.
The Standard Days method was derived from analyzing a large data set from a WHO study40 and estimating the theoretical probability of pregnancy on different days of the menstrual cycle. 13) designed to avoid pregnancy consists of a small hand-held electronic monitor and simple disposable urine test sticks.
A full description of the study methods has been reported.52Luteinizing Hormone Sticks Urinary LH dipsticks are widely marketed toward women wishing to achieve a pregnancy.
Some of the variable factors include the indicators of fertility used, the teaching methodology, the characteristics of the study population, new or experienced users, new or experienced teachers, the methods used to calculate the pregnancy rates, methods used to confirm pregnancies, intention to conceive, or avoid indicated at the beginning of the cycle. Lamprecht and Trussel66 suggest that many FAM studies were flawed in design and did not calculate pregnancy rates correctly.

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