Tested positive on day 14 after period

May 2024 period started 24th till 28th may. Lambat 6 hari. Then June 3rd started having spots. Light brown to dark brown to maroon. On 6th and 7th June, spot Was a little darker red with nauseas. So went to the doctor. He asked to take pregnancy test. result came positive immediately. This was on my 14th day after period. On 9th June, Did blood work. the hcg was 332iu/l. dr said I’m in 1-2 weeks pregnant. Is this common? Sebab I’m a first time mom. Dr pun pening kira my days. Sbb dah positive 14 hari lepas period first day. Mcm mana nk kira minggu saya skrg? Update: had Biochem preg