How can I get pregnant with twins?
I don't know of any surefire ways to get pregnant with twins, but I do know some things that can increase your chances.
You can take folic acid. If you're trying to get pregnant, you should probably go ahead and hop on the folic acid wagon anyway. There's some in bread and most bleached enriched grains, but adding a supplement can't hurt. You really need to have sufficient levels of folic acid BEFORE conceiving to prevent neural tube defects. You need the folic acid for some of this to form in baby before the time most women know they are pregnant. Folic acid can significantly increase your chances of conceiving twins too, vs a women who does not. 40% actually, is what I've heard. With the chances already slim, that's not huge, but definitely statistically significant.
Dairy, dairy, dairy! Load up on milk, cheese, yogurt, ice cream... Load yourself up with all those healthy dairy fats. I've heard this can also increase your chances of having a girl, though I don't know the validity of it. Most cows are treated with hormones, and those hormones may affect you too, increasing your chances. This one actually creeps me out. A lot. But, hey... I'm eating dairy anyway and being affected by the hormones, might as well make it work for me.
Fertility supplements. - You don't have to go to the doctor for Clomid (Though you can, and that will also certainly increase your chances) You can go to Wal-Mart or the health food store and grab a bottle of soy isolfavones for five bucks. It's intended for menopause, but can do wonders for fertility. (This is one thing I was using when I get pregnant after trying for YEARS)
Here's how you do it... You take an ever increasing dose during five days toward the beginning of your cycle. Taking it from CD (cycle day) 1-5 increases how MUCH you ovulate, which can up your chances for twins. I think day 5-10 makes you ovulate a more mature egg. If you do it in between, cycle day 3-7, then you get partial benefits from both sides of the spectrum. It's kind of like easy to get a hold of Clomid in that regard. If you try this, make sure to Google “soy isoflavones and TTC” or “soy isoflavones to get pregnant” something to that effect to find what dosages and what days might work for you.
Other than that, you can also try gaining weight which increases your chances of twins significantly.
What have I missed? Are there other ways to help conceive twins?
Also, does anyone know if with IVF they can implant two embryos if a woman desires twins?