What affect will augmentin have on loestrin 24 fe?

I just started on augmentin today for an ear infection and will be on it for the next ten days. I’m on my period pills now and start a new pack of loestrin 24 on Wednesday. Will the augmentin make the loestrin less effective? And if so how long will I need extra protection after I stop the augmentin?

What if i start Loestrin 24 Fe two sundays after my period?

Is that not okay? I really want to start taking it now but i couldnt the past two sundays
Im 15 but im taking it strictly to shorten my period