Hi, I am Dr Nilajkumar a consultant gynecologist and I will be helping you in your queries. If you had a negative pregnancy test there are few possibilities: 1. you took it too early. It comes positive at least a week after the missed period in women with regular periods. SO check if you have done it too early. 2. Another reason may be that you have conceived late and hence the test is coming negative despite pregnancy. 3. Hormonal imbalances and ovarian cysts produce a state called pseudo pregnancy where there are pregnancy like symptoms despite no pregnancy. 4. Stress also delays periods. So as of now I suggest you relax, get a preg test done 2 weeks after the missed period if negative and still no periods, get an examination, ultrasound and hormonal profile to look for cause. Most of the time it is just a minor delay in periods due to small fluctuation in hormones and tends to correct spontaneously. Hope this answered your query. Thanks for using HCM. Have a good day. Dr Nilajkumar Bagde Consultant Obstetrics and Gynecology