Fertility Q&A with Expert, Dr. Paul Chang

Gynaecologic Reproductive Endocrinology and Infertility Specialist.

Dr. Paul Chang

Dr. Paul Chang MD FRCS(C)

Dr. Paul Chang obtained his medical degree at the University of Toronto. He completed his Residency in Obstetrics and Gynecology and Royal College Fellowship in Reproductive Endocrinology and Infertility at the University of Western Ontario. He joined Toronto Centre for Advanced Reproductive Technology in 2008.

In addition to providing excellent care based on scientific evidence, honesty, compassion, and individual’s circumstance, Dr. Chang enjoys meeting and teaching future medical professionals. He is a lecturer at the University of Toronto and reviewer for many peer review journals. His interests include Polycystic Ovarian Syndrome and Medical Management of Endometriosis. He has recently given a lecture entitled ‘Supplements To Improve Female Fertility.’

He is excited that Canadian women have a new aid in their fertility journey: The Stork.


What are your top tips for anyone trying to conceive or planning to start a family soon?

Here are my top 5 tips:

  • Get educated by understanding your body
  • Eat healthy and exercise regularly
  • Quit smoking
  • Set aside time to be romantic with your partner
  • Most importantly, have fun

Are there any potential indicators or early “warning” signs that could signal a potential fertility issue later on?

Indicators that you may have a fertility issue later on include:

  • Menstrual irregularities
  • Pain during sex
  • Severe pain when menstruating
  • Past injury or surgery to the abdomen, especially to the uterus and ovaries
  • Family history of early menopause or infertility
    If you have any of the above indicators, you may want to seek professional help sooner.

Can stress cause infertility?

Stress, both physical and mental, can contribute to infertility, especially when it is extreme. Athletes training for the Olympics may experience cessation of their menses. Women who gained or lost a lot of weight may experience menstrual irregularities.

When is the best time during my monthly cycle to have sex?

Isn’t everyone using a fertility tracker app on their smartphones? For those who enjoys doing math: subtract 14 from your cycle length to determine your date of ovulation. For example, if your cycle length is 28 days, your date of ovulation is the 14th day of your menstrual cycle. Having sex around the date of your ovulation is the optimal time to help you conceive.

Should we abstain from intercourse a couple days right before I’m ovulating?

This is advisable as it allows your partner’s sperm count to increase.

How many days does it take for a lifestyle or diet change to affect his sperm?

It takes about 3 months for a lifestyle or diet change to affect your partner’s sperm.

If I have PCOS, what are some things I could do in attempt to regulate my cycle?

Gradually lose weight through healthy eating and regular exercise. Enlist your partner or friends to join you on this mission. Weight reduction of 5lbs every 3 to 4 weeks has been shown to regulate cycles in women with PCOS.

Who can use it?

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Where to buy?

The Stork CA Box

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