Negative Pregnancy Test 14 Days After IUI But No Period Worried about a negative pregnancy test 14 days after IUI but no period? At primeivfcentre, we understand how stressful this situation can be. While a negative result might feel discouraging, it's important to know that hormone levels vary, and sometimes it takes longer for hCG to show up in urine. Delayed periods can also result from stress or hormonal medications used during IUI. https://www.primeivfcentre.com/blog/negative-pregnancy-test-14-days-after-iui-but-no-period