I am currently on my third bleed after EC?? Should i be worried??

The first picture is from what I thought was my withdrawl a week after the pill.

The second is from what I thought was my period. Lasted about 4 days which is a little shorter than my normal.

The third is from today— it’s really light so i don’t know if it will get heavier but I am freaking out.

I just went to the doctor today and they said i should be in the clear from being pregnant. I don’t understand what is happening to me. all my tests are negative.

Would it be likely to have 2 periods in one month to catch up from EC????