Jasle SAFE PERIOD ko bhar paryo tesko naau dubchha....and trust me pals pulling out (coitus interuptus) is not so reliable too. Condom is the best. My experience is condom also helps enhancing the length of time of sex. 

Botttom line: DO NOT TRUST WITHDRAWL NATRA JATHO MA JASTAI BELA NA KUBELA CHHORA KO BAU BANLA...