Could this be a false positive?

Help please!!! I am 10 dpiui. I took my first shot of ovidrel on 7/17 and had back to back <a href="">iui</a>'s on the 18th and 19th. I took a booster shoot of ovidrel on the 24th and test today (7/28) and it was positive. I am thinking that it's probably just the ovidrel that is causing the positive????? This is my 9 month with a medicated cycle and my  4th <a href="">iui</a> with my second month with gonal f.  Can anyone offer any advice?