Hi, In the current scenario, it is likely that you may have conceived since you have symptoms of very early pregnancy and scanty menstruation can happen due to implantation bleeding. The ideal thing to do is to go for an estimation of the serum beta-hCG titres since home pregnancy tests may not be reliable. A proper clinical evaluation by a specialist followed by a trans-vaginal sonogram help to assess the situation and plan further management. Hope you find this information useful. Take care.