I and my bf have done unprotected sex last Jan. 25, and I take 3 Trust pills (Ferrous Fumarate) after 3 days, Jan. 27.. Is it safe that I take 3 pills a day? Pls help me, i dont want to get pregnant coz im not ready.. Is there any possibility that i will get pregnant? how can i prevent this unwanted pregnancy? Is this pill effective in preventing pregnancy?