Yes I have had girlfriends have irregular periods like that as well, it's always hard to pinpoint the issue.
i have had some similar issues in the past and all it was for me (every body is different) was ir regular menstrual.. i menstrual for a solid 6 months then not a drop for 6 months then 10-14 days on and 4 months off it was so odd that i went once a week for preg tests.. i have been thinking since then i can not get pregnant.. anyway good luck
Definitely keep us posted, it could just your thyroid causing the issues and even the birth control interrupting the schedule.
I went to the Drs. they said possible thyroid problems but nothing else he just told me to eat right lose weight and excercise and I did but nothing they put me on birth control I couldn't take I was constantly getting sick so I stopped taking them now I'm just worried if I could be Pregnant and not Know it I've taken plenty of Pregnancy test and all negative even blood work but I'm assuming it was too early So I don't know what to do
Did you go to the doctor to see why you didn't get your period for several months? Are you taking a contraceptive that would cause the menstruation delay?