I started Trinessa in September after being on the Depo shot for 1.5 years. I've been taking my pills every day (I haven't missed one) but on occasion I've taken my pills a bit late. I usually take it at 8pm every day, but there have been times where I've taken it at 10pm because I forgot. My boyfriend and I do have unprotected sex but he pulls out every time. I'm just concerned because my periods have been irregular while on Trinessa. I did have a period in October, but I recently started my green pills for this month (November) and I haven't had a period yet. I don't think I'm pregnant, but I have anxiety issues so I'm worried. Is it because the Depo is still in my system? While I was on Depo I didn't have a period at all.