Could this be our BFP??

My period is now officially 3 days late and I have resisted the urge to buy and test.. the past 9 months my significant other and I have been trying and about a month ago I started a new job so we decided to hold off on trying because I wouldn't get the full 12 weeks off since the baby would be born before my 1 year anniversary.. welp come period time she is no where in sight and no sign she is coming..all other tests we've taken in the past when we were actually tying were negative and now I don't want to see the same no answer.. now that we are not trying this could be it... funny how that works?