Certainly a common phenomenon - and I think the effect pregnancy can have on regulating hormones can certainly help. The same can be said for couples who spend years TTC naturally, eventually do, and then 6 or so months after giving birth, discover they are pregnant again.
One theory is that couples (chiefly women) going through IVF are so vigilant with their diet and exposure to toxins etc, that they actually eradicate a large portion of toxicity that their bodies were previously holding onto, and hence created a barrier to conception.
This vigilance usually carries through to the pregnancy, and particularly if the woman breastfeeds, this triggers the body to metabolise and release an even greater proportion of toxins (heavy metals, pesticides, personal care chemicals etc) so the body is more 'primed' for natural conception at the end of this experience than it was prior to the TTC journey.
So too do men learn alot about the way various lifestyle and environmental factors effect the health of sperm when going through the IVF process and are more likely to have made various changes which are hospitable to natural conception occuring down the track.
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Last edited by JellyBean; September 17th, 2009 at 05:15 PM.
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