“…During the past decades, women had been looking forward to alternatives to the short-acting contraceptives and there were many studies with focus on long-acting contraceptives (Baldwin and Edelman, 2013, Neukom et al, 2011, Ferreira et al, 2014, Chen and Chen, 2007). Consistent use of short-acting methods such as injectables and pills is under constant threat from difficulty of the ‘surprise’ in case of a forgotten pill, inconvenience of daily intake, onset of side effects and other factors (Harel and Cromer, 1999, Lara-Torre and Schroeder, 2002, Likis, 2002, Brache and Faundes, 2010). Long-acting contraceptive methods such as intrauterine contraceptive device (Thonneau and Almont, 2008, Jacques et al, 1986), implants (Bhatia et al, 2011) and injections (Thurman et al, 2013, Rahimy et al, 1999) which could offer a long-period effect with good compliance (Urdl et al, 2005) and tolerance are more popular (Archer et al, 2004).…”