17 weeks & 2 days today🥰 Need some help! So 17 weeks you are thinking okay I’m in my first week of 5…

17 weeks & 2 days today🥰

Need some help! So 17 weeks you are thinking okay I’m in my first week of 5 months!! Finally right, but google says I’m 3 months & 3 weeks.. almost 4 months... how can this be so??? Someone help explain this to me because it’s extremely confusing for me lol.