sex drive after taking morning after pill

Okay so I took the morning after pill about a month ago. I got my periods twice since then and they both lasted around 5-6 days which was alright, however I haven't been in the mood for anything since and I am wondering if anyone else has taken the morning after pill and it had lowered their sex drive?? How long did it take to go back to normal?? Before taking it I would always be in the mood but now I'm not into it at all and it sucks !