I took Birth control,injectable that last for just 3months, once in a year, November 2015 and December 2016. In 2015, I had my normal menstral cycle but the one I took in 2016 caused me like 2months delay. However, since September, 2017 I have not seen my menses and I do not meet my husband all this while, until January,2018.Few days after the intercourse my nipples were paining me and I had thick whitish discharge for like a week and I experience small watery discharge after that till now. I am 43 years, I will be 44years this year. From September, 2017 till now February, 2018 no menses. What can be the cause please? Thanks