How to Know if You’re Pregnant if You Have Irregular Periods

Most women know that one of the first signs of pregnancy is a missed period; however, if you have irregular periods, it may be difficult to know when a period is missed. Learn to look for other signs of pregnancy that can signal the need to consult a medical professional or home pregnancy test.

Part 1
Part 1 of 2:

Recognizing Early Signs of Pregnancy

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    Look out for implantation bleeding. Spotting or light bleeding six to 12 days after your last period could indicate a fertilized egg has embedded itself into your uterine wall.[1]
    • Some women may feel cramping, as if they're about to get their period.
    • The spotting can be mistaken for a light period, particularly if you have irregular periods.
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    Pay attention to sore breasts. Swollen and tender breast tissue is a sign that hormones are changing in your body. They can begin one to two weeks after conception. Your breasts might start to feel heavier, or fuller.[2]
    • If you frequently have tender breasts, move on to other symptoms to determine if pregnancy is likely.
    • Some women may even increase in bra size within a few weeks of getting pregnant. If this is the case, you may be pregnant.
    • Your areolas may also start to darken. This change is also caused by hormones from pregnancy.[3]
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    Note feelings of fatigue. As your body adjusts to pregnancy, women usually start to feel tired and sluggish. This can occur as early as the week of conception.[4]
    • Fatigue is a result of increased progesterone, which makes you sleepy.
    • If there’s a chance you’re pregnant, avoid treating fatigue with caffeine. Caffeine isn't proven to be harmful at this early stage but if consumed in excess it can increase the chance of miscarriage. The exact amount is not known, but 200 mg is generally considered the cutoff.
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    Wait for feelings of nausea. Morning sickness can start at about two weeks after conception and continue until eight weeks after conception. If you start to feel regular nausea, it is time to take an at-home pregnancy test.
    • Nausea may also accompany food aversions. Some of your favorite foods may make you feel ill while you are pregnant.
    • Nausea may not always be accompanied by vomiting.
    • You may notice an increased sensitivity to smells. Even smells you may once have enjoyed may now trigger nausea.
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    Notice food cravings or aversions. Even in early pregnancy, hormones alter your desire for particular foods. You may crave strange combinations of foods that you've never desired before. Your formerly favorite foods may cause nausea.[5]
    • You might notice a metallic taste in your mouth. This is normal in early pregnancy.
    • Many women report feeling disgusted by the smell of coffee when they're pregnant, even if they were heavy coffee drinkers before the pregnancy. If you find yourself nauseated by the smell of coffee, this may be a sign of pregnancy.
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    Watch for headaches, backaches and frequent urination. These are characteristic signs of early pregnancy. They are caused by a combination of pregnancy hormones, a larger amount of blood in your system, and kidney function.[6]
    • It's okay to take some over-the-counter pain medication such as acetaminophen to help relieve pain from headaches and backaches. While ibuprofen is generally considered safe in early pregnancy, few physicians will recommend its use unless you are being closely monitored.
    • Instead of medication, consider treating aches with home remedies such as a warm bath, using a heating pad, getting a massage, etc.
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Part 2
Part 2 of 2:

Testing for Pregnancy

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    Determine if you have two or more of the early signs of pregnancy. If you do, take an at-home pregnancy test. With most tests, you'll place the end of a dipstick into a small container of your urine, or move a testing stick into your urine flow. Within a few minutes, the dipstick should indicate results by changing colors, showing the words "pregnant" or "not pregnant" on the stick, or symbols.[7]
    • Most pregnancy tests will not be reliably accurate until the fifth week of pregnancy.
    • Instructions for home pregnancy tests vary. Follow the directions on the test you choose.
    • Home pregnancy tests check for the presence of the hormone human chorionic gonadotropin (HCG) which accompanies pregnancy.
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    Repeat the test in a week or opt to go to the doctor for a test. Although at-home pregnancy tests rarely give false positives, they can give false negatives if it is early in the pregnancy. If you feel you are within a week or two of implantation, you should test twice.[8]
    • Take the home pregnancy test first thing in the morning when your urine is concentrated. Drinking too much fluid before taking a home pregnancy test can result in a false negative.
    • A false positive result can occur in cases where hormonal changes with menopause are occurring or if you are receiving HcG injections as part of infertility treatment.
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    Make an appointment. If you are consistently getting positive results in a home pregnancy test, or your symptoms of pregnancy persist despite getting negative results, call your gynecologist or family doctor. Blood tests that doctors perform can pick up on pregnancy quicker than at-home urine tests.[9]
    • The sooner your pregnancy is confirmed, the sooner you can learn about options. Your healthcare provider can discuss options for your pregnancy with you.
    • If you plan to continue your pregnancy, your healthcare provider can help you with prenatal care.
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References

  1. ↑ http://www.healthcentral.com/sexual-health/pregnancy-260756-5.html
  2. ↑ http://www.mayoclinic.org/healthy-lifestyle/getting-pregnant/in-depth/symptoms-of-pregnancy/art-20043853
  3. ↑ http://community.babycenter.com/post/a24148093/the_early_signs_of_pregnancy_symptoms_checklist
  4. ↑ http://www.mayoclinic.org/healthy-lifestyle/getting-pregnant/in-depth/symptoms-of-pregnancy/art-20043853
  5. ↑ http://www.mayoclinic.org/healthy-lifestyle/getting-pregnant/in-depth/symptoms-of-pregnancy/art-20043853
  6. ↑ http://www.babycentre.co.uk/top-10-signs-of-pregnancy
  7. ↑ http://www.mayoclinic.org/healthy-lifestyle/getting-pregnant/in-depth/home-pregnancy-tests/art-20047940
  8. ↑ ormone human chorionic gonadotropin (HCG)
  9. ↑ http://womenshealth.gov/publications/our-publications/fact-sheet/pregnancy-tests.html
  1. ↑ http://www.preeclampsia.org/health-information/sign-symptoms

Expert Q&A
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  • Question
    Having unprotected sex for a month and have an irregular period, but now am showing signs of pregnancy. How do I know when to take a test?
    Carrie Noriega, MD
    Carrie Noriega, MD
    Board Certified Obstetrician & Gynecologist
    Dr. Noriega is a Board Certified Obstetrician & Gynecologist and medical writer in Colorado. She specializes in women’s health, rheumatology, pulmonology, infectious disease, and gastroenterology. She received her MD from the Creighton School of Medicine in Omaha, Nebraska and completed her residency at the University of Missouri - Kansas City in 2005.
    Carrie Noriega, MD
    Carrie Noriega, MD
    Board Certified Obstetrician & Gynecologist
    Expert Answer

    Support wikiHow by unlocking this expert answer.

    You want to take a test as soon as you think you are pregnant. If it is negative and you still think you are pregnant then repeat it in a week.
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Warnings

  • Watch for signs of preeclampsia. Preeclampsia is a serious medical condition of pregnancy. High blood pressure is one of the primary indicators of preeclampsia, along with vision changes and sudden weight gain.[10]
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About This Article

Carrie Noriega, MD
Co-authored by:
Carrie Noriega, MD
Board Certified Obstetrician & Gynecologist
This article was co-authored by Carrie Noriega, MD. Dr. Noriega is a Board Certified Obstetrician & Gynecologist and medical writer in Colorado. She specializes in women’s health, rheumatology, pulmonology, infectious disease, and gastroenterology. She received her MD from the Creighton School of Medicine in Omaha, Nebraska and completed her residency at the University of Missouri - Kansas City in 2005. This article has been viewed 262,981 times.
84 votes - 89%
Co-authors: 8
Updated: December 23, 2022
Views: 262,981
Categories: Pregnancy | Menstrual Cycles

Medical Disclaimer

The content of this article is not intended to be a substitute for professional medical advice, examination, diagnosis, or treatment. You should always contact your doctor or other qualified healthcare professional before starting, changing, or stopping any kind of health treatment.

Article SummaryX

If you’re having irregular periods, you can tell if you’re pregnant by watching out for any spotting 6-12 days after your last period, which is a common sign of fertilization. You should also look out for sore breasts, cramps, nausea, fatigue, or headaches 1-2 weeks after you last had sex. Another common sign of pregnancy is cravings or aversions to particular foods. If you have 2 or more of these early pregnancy signs, take a pregnancy test to make sure. Because home testing kits aren’t always accurate, you should also repeat the test a week later. If you get 2 positive results from your home pregnancy test, schedule a visit with your doctor to discuss your pregnancy. For more tips from our Medical co-author, including how to use a home pregnancy test, read on!

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