Newer contraceptive pills raise risk of blood clot four fold

Be safe out there.
http://www.telegraph.co.uk/news/science/science-news/11630581/Newer-contraceptive-pills-raise-risk-of-blood-clot-four-fold.html

Taking third generation pills such as Yasmin, Femodene and Marvelon raises the chance of a blood clot four fold.

More at link.