Birth control Qs

I have a couple questions about birth control. I just started Viorele about 10 days ago. 1.) today I was accidentally 30 mins late taking the pill, does that put me at any risk? 2.) did anyone else have major mood swings becahse I've been crying for two hours non stop for no reason. 3.) due to start birth control my period skipped (took pregnancy test and came out negative so I'm not