late period. negative test.

so about 4 months ago I started ocella. I'll be honest, I didnt waot for my period and I just took it. had my period the 3rd week of that cycle. had a shorter period the 2nd month. the 3rd month my period lasted 4 days from may 1st-4th. on may 11th I ran out and my pharmacy said my insurance wanted me to use the mail order option. I did not get my next month supply until the 31st of may. I began taking it immediately l. Now I am about 10 days late and I'm unsure of it's from 1) getting off the pill for so long, 2)restarting again before my period, or 3) of course there's always the possibility of pregnancy. I took a test and it came back negative. I dont have any symptoms (I have been pregnant 2xs). I am just wondering what the heck is going on? my husband an I we safe, of course but he's selfish at times and insists on the pull out method so, of course, all things are possible. Any help or advice?