Panicking a bit.....

Wondering if we are having infertility issues? My fiancé and i are not on any contraceptives and its been 2 years and more and am wondering if we can actually get pregnant. We've done it alot of.times during my fertile window.and every month my periods come. I have a 5 year old from my previous relationship but my fiancé has no kids. We've put a bit.more effort last month and this month.