I had period on 3rd february . and had unprotected sex on 13 th feb . then i had ipill on 15th and got bleeding on 23rd feb which lasted till 26th feb . then i started novelon and after stopping the pills i got my periods on 20th march which lasted for 3 days instead of 5 days . is it normal ? also today i tested with a pregnancy kit . but the result was negetive in the morning and with times i can see 2nd line is occuring as the positive line .. is it possible to get pregnant after having the periods after taking the ipill n novelon ? i am really worried.. plz help n advice .