I got my last period before three months. I have not gotten my periods ever since. I had protected intercourse twice before two months. However, I have no symptom and all the pregnancy tests are negative. Also, I have missed my period the same way, even before once and my cycle is generally longer than 35 days. I am taking homeopathy to induce periods along with some natural home remedies. I was on birth control pills for about three to four months last year.