I Am 14 Days Post Iui. Urine Home Test Shows

i am 14 days post iui. Urine home test shows negative. Breasts are sore on the sides but no nipple tenderness, feel somewhat pressure in my female area. my first pregnancy I didn't get a positive urine until 52 days into a cycle. had no bleeding or anything during the 52 days. my cycles are usually 33 days. should I not test on day 14 due to my lengthy cycle?