Hi I have been sent an appointment for HSG dye test on 03 mar however I have very irregular periods my doctor has given me noresterone to take to induce my periods however this was 2 weeks ago when he checked that I was definitely not pregnant however I have been having unprotected sex since then last time wed 11 February so my question is how soon can I take a pregnancy test to ensure I'm not pregnant before taking the noresterone (7 day course). I would doubt I am pregnant as I have been trying for a year now. Also when I do take the noresterone and I induce a period at what stage can the HSG been done?? Thanks