Dear all, maybe you could help me in this question. If I got an estimate for my independent variable with p-value 0.051, should I report confidence intervals for this estimate being equal to 90%?

If you a priori had a level of significance set at 0.05 you report estimate with 95% CI, if 0.10 then 90% CI, etc. See what is going on here, 1 - alpha for CIs.