Exercise During IVF: Current Evidence and Recommendations
You can exercise during IVF, but with specific modifications depending on the stage of treatment—there is no blanket prohibition on physical activity during in-vitro fertilization.
Understanding the Misconception
The traditional advice to avoid exercise during IVF stems from theoretical concerns about ovarian torsion (when ovaries are enlarged from stimulation) and implantation failure, but these concerns are largely not supported by current evidence. The confusion often arises because IVF involves distinct phases requiring different activity considerations.
Evidence-Based Activity Guidelines by IVF Phase
During Ovarian Stimulation
- Continue moderate physical activity with awareness of ovarian enlargement
- Higher physical activity levels before IVF may actually improve ovarian response, with one study showing women with high activity obtained more oocytes in certain subgroups (endometriosis, ovulatory disorders, normal BMI) 1
- Physical activity and lower sedentary time before entering assisted reproduction is associated with better controlled ovarian stimulation outcomes 2
- Key modification: Avoid high-impact activities, jumping, or exercises that could cause abdominal trauma once ovaries are significantly enlarged (typically after 5-7 days of stimulation)
Immediately After Embryo Transfer
The evidence here is nuanced and depends on the procedure:
- After IUI (intrauterine insemination): Bedrest immediately after may have favorable effects on clinical pregnancy (moderate quality evidence) 3
- After embryo transfer: Bedrest shows no benefit and possibly unfavorable effects (very low quality evidence) 3
- A 2026 study of 212 women found that professional and physical activity on the day of frozen embryo transfer and the three following days did not impact clinical outcomes 4
- Another 2026 survey of 216 athletes found that continued exercise participation did not increase odds of adverse events during ovarian stimulation 5
The Two-Week Wait (Post-Transfer Period)
- Light to moderate activity is safe and does not reduce pregnancy or live birth rates
- Physical activity levels before and during IVF do not affect implantation, pregnancy, or live birth outcomes 2
- Very low quality evidence suggests no deleterious effect of moderate physical activity on clinical pregnancy and live birth after embryo transfer 3
Important Caveats and Nuances
The Intensity Question
One older study (2006) found that women exercising ≥4 hours per week for 1-9 years had 40% lower live birth rates and higher rates of cycle cancellation 6. However, this represents chronic high-intensity exercise in the years leading up to IVF, not activity during the IVF cycle itself.
What Most Women Actually Do
- 79% of athletes continued exercising during IVF, with most reducing intensity, frequency, or duration 5
- Women significantly reduce their physical activity and increase sedentary behavior during IVF compared to baseline 2
- Most women restrict activities following IVF/embryo transfer even when doctors suggest normal routines, driven by fear of failure 7
Practical Recommendations
Safe activities throughout most of IVF:
- Walking (all intensities)
- Swimming (avoid diving)
- Stationary cycling
- Light resistance training (upper body focus after stimulation begins)
- Yoga (avoid inversions and deep twists during stimulation)
Activities to avoid during ovarian stimulation:
- High-impact aerobics or running (once ovaries enlarged)
- Contact sports
- Heavy lifting (>20 lbs)
- Exercises with risk of abdominal trauma
- Activities with fall risk
After embryo transfer:
- Resume normal daily activities immediately
- Avoid bedrest (no proven benefit, possible harm)
- Light to moderate exercise is safe
- Listen to your body regarding intensity
The Bottom Line
The fear-based restriction of exercise during IVF is not evidence-based. The most recent and highest quality evidence shows that moderate physical activity does not harm IVF outcomes and may actually improve ovarian response 5, 2, 4, 1. The key is modifying activity appropriately during ovarian stimulation when ovaries are enlarged (to prevent torsion risk) and avoiding extreme exercise volumes. After embryo transfer, normal activity—including work and light exercise—does not reduce success rates and bedrest should be avoided.