Hi last year July i used Pantogon injection once , after that my period took 2 weeks the longest then in December 5 days ,usually my periods come every 1st of the month. In January it was 4 days then on the 16 January 2014 i started unprotected sex ,1 february it was 3 days , March i missed until 13th i started bleeding but it was not light it was only 2 days , all the tests (blood test and HPT) became negative nad i had all the symtoms . On the 15 April i went to a GP he gave me Pax 5mg, Hyospamol ,cyclidox , it hepled me because i had a gas, Bloated, tummy and Nausea but my back is still painfull. Now its 24days missed periods still nothing so far . whats wrong with me