At what BMI did your ovluation get screwed up/ stop?

I still have what I think is a lot of weight to lose, but out of curiosity, at what BMI were you when your ovulation started to get screwed up and/or stopped?

I had a bmi of 17 when I started rarely getting a period so I assume I wasn't ovulating either. i was off bc for a year but still tought it was from that.. now I know it wasn't lol Wish I still had to worry about being under weight! Lol I'm average now but I miss being a size 0. Hope that helps!

Weight can mess up everything. All your hormones. Great news is that it is 100% correctable!

Size 0! I don't even remember what that's like! Lol!! 😉

My bmi is about 17.5. I stopped ovulating on my own 3 months ago. I don't know if that's why but I guess it is possible. I have been trying to stay within the le range but maybe I need to eat more to start ovulating.

Although I wasn't swaying at the time, I lost my cycle when my BMI dropped just below 18. I was unwell for many years after that, but it actually took 18 months to come back even after my BMI regulated above 18. I don't miss being a size 0 at all!

I've always had extremely regular cycles and had a BMI of 18.5 and 18.8 when I got pregnant with both boys. I've never dropped below that, but I bet under 18 would affect fertility.

I do not want anyone to go below BMI 18.5. It is dismaying to me that anyone is droping to 17.

Any time you lose a lot of weight fast, you can stop ovulating for a while even if your weight is still above what you would think would be ok.

You can't just look at a BMI and say, yes this will be ok because that's not how your body works. everyone is different and you can stop/delay O at any BMI with rapid wieght loss

Healthy fats will help you to gain back your cycle, as well. Although it sways boy, fat (healthy monounsaturated and even grass fed meat fat) is not what causes your body to gain fat, but sugars and grains are what cause weight (and fat) gain. Maybe try and small amounts of fat but maybe up your fruit or grain intake (?) better to be safe and stay healthy.


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My bmi was at 18 and I was size 0 when I completely lost ovulation.

I would not up healthy fat intake except as a last resort

Body fat is the true concern, not BMI. I am very small-boned with very little muscle and most of the time my BMI is 16-18 - it is almost never as high as 18.5. I've had my BMI in the 14s and I still Oed regularly but I had a short LP. However I have high body fat % for my size (24-25% at 17 BMI), so even at my very lightest, my body fat is enough to sustain O (16% is the lowest BF I've had, in the 14s).

Thanks for all the responses. It seems like my ovulation won't get screwed up for a LONG time at the rate I'm going (1 lb/week), BMI 22. :)

maiden - I wish I knew my body fat %, I didn't realize how much that played into things.

Calipers can give you a rough body fat estimate, though they tend to underestimate, by as much 10%. Most gyms have them or you can buy them pretty cheaply. Would you say you are muscular?

I think it's more than just body fat because I have had some people lose ovulationg when they had a pretty high BMI when they lost quite a lot of weight all at once. IT's not common but it does happen. :)

Oh yeah, the shock of rapid weight loss can be very stressful on the body.