i m already a mother of 3 yr old baby girl & recently had 2 consecutive missed abortions within a yr thatz y now i want 2 hv a sufficient gap 4 the nxt healthy pregnancy... usually dont prefer 2 use any sort of medicated contraceptives & simultaneously my spouse never like 2 use condom as well... v just use the method of withdrawal... is it ok fr our future contraception? plz guide me in detail