Risk of preg? Men dts 26/12, 20/01,

During 2nd day of my previous periods (started on 18th February,2022), i had an unplanned intercourse, that is on 19th February,2022. Within four hours of this incident, i took an I-pill. My periods which usually lasts for four days mostly or at Max. Five extended till 25th or 26th. Also, my heaviest bleeding which occurs on the second day that time time happened alongwith painful cramps as far till 23rd February,2022. This time i had a lighter bleedin starting from 17th March till yesterday but the flow was uneven and lighter. On the 1st two days i had clots which were smaller than usual, by the 3rdday it was stopping on and off. On the 4th day, that is 20th March i thought that the bleeding had stopped, as it didn't bleed for till evening. But after a brief evening walk,i had a very light flow with a mild but sharp pain and at the lower left abdomen and bit of giddiness.also i took a upt by prega news which gave a negative result. Is it periods or is it a bleedin with risk of preg?