What can i use to prevent pregnancy when i had sex yesterday besides using morning after pill?

You can do nothing more at this point; just keep your fingers crossed. However, this should be a teaching moment that leads you to start proper contraceptions. Get on a reliable hormonal method (pill, insert, or injection) or an IUD before you next have sex. Good luck.

It is the morning after pill only. Plus plan effectively for the next time you have sex and use regular birth control prior to having sex always.