I have chickens that I got last Feb. and still have not laid an egg?? One was a rooster and I wonder if he is stressing them too much. I raised chickens for 20 years never had this happen before. I got them from a different source this time but still??
What breeds are they? Do you mean this past Feb? Depending on the breed some may not lay until they are 8 to 9 months. Are they getting fed a good layer feed? Maybe post some pics of the hens?