Queen Anne's Lace Seeds for Birth Control

I am interested in taking Queen Anne's lace seeds (Daucus carota) as a morning after form of birth control...
From what I have researched, an effective method would be to chew a teaspoon of the seeds immediately after sex and once a day for the next two days.
A variation would be to grind the seeds immediately before consumption and mix with water and drink.
Tinctures are also useful I understand.
Please let me know how the herbal extract on richters.com compares to this. Is it a tincture, and what would be a dosage of the extract to use that would be comparable in effect to the whole seed method above.

Yes, wild carrot or also known as Queen Anne's lace has been suggested as an old folklore remedy for birth control. The volatile oils are said to irritate the uterine lining thus causing an ovum to not implant. Although I have not used this in my practice, a few colleagues I know feel it works.
aradicle.blogspot.com/2007/10/wild-carrot-seed.html
robinrosebennett.com/wild_carrot%20article.htm
Traditionally it has been the seeds that have been used as opposed to using a tincture. I would hazard a guess that unless the tincture is made from using 70% or high alcohol as the high alcohol percentage is needed to extract an acceptable amount of these oils, the remedy would be too weak for this particular purpose.
However, as we all know, sometimes it can be almost impossible to avoid a pregnancy even when "tried and true" birth control methods are used with abstinence being really the only 100% fool proof method. My advise is to not rely on wild carrot seed as the only form of birth control but rather as a complementary method.