I messed up on my contraceptive patches 2 months ago, I forgot to put one on after my week break but only realised a week or so later. The advice I got was to wait until my next period which I got on time but then forgot to put it on again! My boyfriend and I only had unprotected sex once but I was then 2 weeks late for my next period. I took a test which was negative and then got a very light period for 1 day, that was last week. I now have tender breasts but more so one breast than the other, am very tired and today started feeling a bit sick intermittently. I've taken a clearblue digital test today which is negative again. Am I likely to be pregnant???