Hey lovey, well me and my ex were in the same boat... I was on the pill and he hardly ever used condoms. I notice I hadnt got my period in the time it was meant to come...then I took a preg test and hey it was positive, then a I shot straight to the doc's and got a blood test and I found out I was 8 weeks pregz. I had no real signs of being up the duff except massive cramps and lower back pains. Sadly we did not keep the baby as I nor he was ready for it, also we broke up in that time frame and I had moved on.
But yeah get yourself tested, u could be pregz...