Can You Get Pregnant if You're Already Pregnant

When are you lot more likely to excogitate?

Nosotros're talking most the 'fertile window' – the days in a woman's menstrual cycle when pregnancy is possible. The 'fertile window' depends on the length of the menstrual cycle, which varies among women.

The 'fertile window' is the twenty-four hour period an egg is released from the ovary (ovulation) and the 5 days beforehand. Having sex (intercourse) during this fourth dimension gives you the all-time chance of getting pregnant.

Ovulation Computer

• What is an ovulation calculator and how does it help you become pregnant?

  This ovulation reckoner or ovulation calendar can help you piece of work out your most fertile fourth dimension. These are the days you are nearly likely to get pregnant.

  It can also estimate your due date if you do become pregnant during your next fertile days.

  Others means to assistance you work out when you're ovulating:

• Notice changes in vaginal fungus

  A few days earlier ovulation, yous may notice your vaginal fungus becomes clear, slick and slippery, and feels a flake like egg white.

  This is a sign that ovulation is well-nigh to happen. Information technology'southward the best time to take sex, as sperm travel more easily in this kind of fungus.

• Use an ovulation predictor kit

  Y'all can employ a predictor kit from a supermarket or pharmacy, to test your urine for signs of ovulation. If you kickoff testing your urine a few days before the twenty-four hour period you next expect to ovulate, a positive result means you are going to ovulate inside the next 24 to 36 hours (one to two days).

• Facts about timing

  Ovulation is when a mature egg is released from the ovary. The egg then moves down the fallopian tube where it can be fertilised. If sperm are in the fallopian tube when the egg is released, there is a proficient hazard that the egg will be fertilised, creating an embryo, which tin can grow into a baby.

  Pregnancy is technically just possible if yous have sex during the v days before ovulation or on the day of ovulation. Merely the nearly fertile days are the iii days leading upwardly to and including ovulation. Having sexual activity during this time gives you the best chance of getting pregnant.

  By 12-24 hours subsequently ovulation, a woman is no longer able to become pregnant during that menstrual cycle considering the egg is no longer in the fallopian tube.

  In that location's almost no chance of getting pregnant if y'all take sexual practice before or after the fertile window (but if you lot're not trying to get pregnant, don't rely on this – contraception is your best pick!).

• How to know when you're ovulating

  Knowing when you ovulate tin can help you programme for sex at the right time and improve your chance of getting pregnant.  You can keep rail of your menstrual cycles on a chart, in a diary, or on a gratuitous period-tracker app on your smartphone.

  To work out the length of your menstrual cycle, record the commencement 24-hour interval you lot start bleeding (first twenty-four hour period of your flow). This is day i. The concluding day of your cycle is the mean solar day before your next period begins.

• What is a 'menstrual cycle' and a 'catamenia'?

  Some people retrieve the 'menstrual cycle' and a 'period' are the aforementioned matter.

  A menstruation is when you bleed (or menstruate).

  A menstrual cycle starts on the day when a period starts (day 1) and ends the twenty-four hours before the next menses. A cycle's length is considered normal if information technology's between 21 and 35 days. They tin vary between women and from one cycle to the next.

• Working out your 'boilerplate' menstrual bike length

  If your menstrual cycles are different lengths (virtually women'southward cycles are) you can work out your average wheel length.

  The number of days in a woman's menstrual bike can vary calendar month to month. Periods are non always regular. Information technology can be useful to work out an 'boilerplate' wheel length, based on the length of three menstrual cycles, to approximate when you're most likely to be ovulating.

  If you add together the number of days in 3 cycles and divide the total number past three, it gives you your average bike length.

  Case

  Sarah tracked her terminal 3 menstrual cycles by counting the time from the first mean solar day of one menstruum, to the mean solar day before the side by side period.

  Cycle 1 was 28 days; Cycle 2 was 32 days; Bike 3 was 27 days

  28 + 32 + 27 = 87

  87 divided by three = 29

  So the average length of Sarah's menstrual cycles is 29 days.

• Working out your well-nigh fertile days

  When you know your boilerplate menstrual cycle length, you can piece of work out when you ovulate.

  Ovulation happens almost 14 days before your menstruation starts.

  • If your boilerplate menstrual cycle is 28 days, you ovulate around twenty-four hours fourteen, and your most fertile days are days 12, 13 and fourteen.
  • If your boilerplate menstrual cycle is 35 days ovulation happens around 24-hour interval 21 and your near fertile days are days xix,20 and 21.
  • If you accept shorter cycles, say 21 days, ovulation happens effectually day 7 and your almost fertile days are days 5, 6 and vii.

  Your most fertile days are the 3 days leading upwards to and including the day of ovulation.

  Some women accept very irregular cycles or find it difficult to piece of work out an average cycle length. This can make it hard to piece of work out when ovulation happens. If it'due south all too hard, having sex every 2-3 days covers all bases and improves your chance of getting pregnant.

Myth busting

MYTH

A woman can get pregnant whatever fourth dimension of the month.

FACT

A woman tin can only get pregnant on a few days during her menstrual cycle.

Why?

Considering eggs and sperm but live for a short fourth dimension:

• Sperm live for effectually v days.
• Eggs can only be fertilised for around 24 hours (one day) after being released from the ovary.

Eggs and sperm need to come together at the right fourth dimension for fertilisation to happen to create an embryo.

Getting the timing correct

If yous're trying to become pregnant, timing is everything. Dr Karin Hammarberg explains how to work out when you lot are ovulating and the right time to accept sex to improve your chance of pregnancy.

• What are the chances?

  Having sex as close as possible to the time of ovulation increases the chance of pregnancy.

  If a woman has sex 6 or more days before she ovulates, the chance she will get significant is about goose egg.

  If she has sex five days earlier she ovulates, her probability of pregnancy is near 10 percent.

  If she has sex on the day of ovulation, or the two days earlier, the take chances of getting meaning is around 30 percentage.

  These are average figures and depend on a adult female's age.

When does preconception health brainstorm?

Professor Sarah Robertson, Manager of Robinson Enquiry Institute, University of Adelaide, highlights the primal fourth dimension before pregnancy that your health is most of import to ensure your child has the best get-go to life.

How to know you are ovulating

Kerry Hampton, a registered nurse and fertility specialist, discusses the importance of fertility awareness, and how to determine your fertile window to ameliorate your chances of conceiving.

• References
  • American Club for Reproductive Medicine, Optimizing natural fertility, https://www.reproductivefacts.org/news-and-publications/patient-fact-sheets-and-booklets/documents/fact-sheets-and-info-booklets/optimizing-natural-fertility/
  • Berglund Scherwitzl, et al. (2015). Identification and prediction of the fertile window using Natural Cycles. The European Journal of Contraception and Reproductive Health Care, twenty(5), 403-408. doi:ten.3109/13625187.2014.988210
  • Ecochard, R., et al. (2015). Self-identification of the clinical fertile window and the ovulation catamenia. Fertility and Sterility, 103(5), 1319-1325.e1313. doi: http://dx.doi.org/10.1016/j.fertnstert.2015.01.031
  • Pfeifer, Southward., et al. (2017). Optimizing natural fertility: a committee opinion. Fertility and Sterility, 107(1), 52-58. doi: x.1016/j.fertnstert.2016.09.029
  • Stanford, J. B. (2015). Revisiting the fertile window. Fertility and Sterility, 103(5), 1152-1153. doi: http://dx.doi.org/x.1016/j.fertnstert.2015.02.015
  • Stanford, et al. (2002). Timing intercourse to achieve pregnancy: current evidence. Obstetrics and Gynecology, 100(6), 1333-1341.
  • Stephenson, J., et al. (2018). Before the commencement: nutrition and lifestyle in the preconception menstruum and its importance for hereafter health. The Lancet, 10.1016/S0140-6736(eighteen)30311-8 doi: x.1016/S0140-6736(18)30311-8
  • Vélez, M. Pet al. (2015). Female exposure to phenols and phthalates and fourth dimension to pregnancy: the Maternal-Baby Research on Environmental Chemicals (MIREC) Study. Fertility and Sterility. doi: ten.1016/j.fertnstert.2015.01.005
  • Verón, G. L., et al. (2018). Impact of age, clinical weather condition, and lifestyle on routine semen parameters and sperm kinematics. Fertility and Sterility, 110(1), 68-75.e64. https://doi.org/10.1016/j.fertnstert.2018.03.016
  • Waylen, A. Let al. (2009). Effects of cigarette smoking upon clinical outcomes of assisted reproduction: a meta-assay. Hum Reprod Update, fifteen(1), 31-44.
  • Zenzes, M. T. (2000). Smoking and reproduction: gene damage to homo gametes and embryos. Hum Reprod Update, 6(two), 122-131.

Folio created on: 28/08/2018 | Last updated: 15/02/2022

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Source: https://www.yourfertility.org.au/everyone/timing

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