nuvaring

Hi ladies I have a question!
I started my nuvaring after my period last month bc I couldn't fill my prescription on time (I was out of the country) so.. I inserted and started my nuvaring 2 days after I was supposed to start it.. I waited 2 weeks to have let my boyfriend cum inside me.. I am now a couple (3) days w/o my nuvaring for my period (no ring week) but it hasn't came yet.. I have been cramping but no period yet.. Just wondering if this is normal or have had similar experiences??? Oh and I also don't have regular (on time) periods and mostly only last for 3-4 days.. Should I be freaking out yet or..?