We got our bfp yesterday

We got our bfp yesterday! So utterly shocked as I thought I just had my period and just tested on a cheapy as I'm a poas addict and was so stunned! 
​Just a quick question- clear blue says I'm 1-2 weeks but my last AF was on 15/4. Am I 1-2 weeks or actually 5 weeks as I have a long cycle?!