I took emergency contraceptives (norlevo) begging of march then started on oralcon immediately. my period was normal for march, however, in april... my period was 2 days late and the flow is reduced. could i be pregnant?

Unlikely, but...: If worried, can do a pregnancy test. A home urine test gives a reliable result 3 weeks after sex (3 weeks after when conception might have occurred), 1 week after missing a period, or after having a "weird" period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon. If a woman gets her usual withdrawal period, then she is not pregnant.