Hi , I missed a dose of my yasminelle pill , and I had sexual intercourse , now a few weeks after I feel nausious , have cramps (like period cramps) , and tired , I also had a heavy discharge.. I have 8 days left on my pill and my period comes 5 days later.. is there a chance I'm pregnant?

There is always a chance of pregnancy when you have sex. No form of birth control is 100% effective.

Now you are playing the waiting game and have to wait to see if your period comes as expected. If not, wait two weeks then take a HPT using first morning urine.