Has anyone else gotten a BFP at three weeks?

Has anyone else gotten a positive pregnancy result days before they were even due for their period?? And I have taken about 4 with all positive results, but am still in the "can't believe it's true" stage. I am very happy about the news, but still shocked. We are telling my partner's parents tonight, and I am like should I take ONE more test...am I going crazy? My Partner told me I am obsessed and not to take another, four is enough, but I guess I am worrying b/c the positive came up at three weeks pretty much, has anyone else gottent his?