How many weeks am I?

Question

I’m confused as different apps, websites etc give me varied lengths between 3-4 weeks - my last period was on 3rd May and my cycle is 24 days how far am I exactly? X

Answer

Feb 3rd! 
Mama natural’s pregnancy calculator is the best one I know! 
https://www.mamanatural.com/pregnancy-calendar/february/03/2021/?days=276