Put your finger in the soil and see if it feels sold. I get impatient too. I was starting some seeds in a new location, by a sunny window. Five days went by and nothing. Kinda pissed me off, but I just moved them on top of my heater where its usually 80* to 85*F and after one day one sprouted and I expect the others two spout in 1 or 2 more days. Its all about temps. 75-80 is ideal. 85-90 and you risk cooking them.