Bfp 2 weeks after s*x

Sydney

16 days before my period is to start and my guy instincts told me to test. Well baby #3 is on its way hcg quant came bk at 35 7dpo. Is that high or normal? Ive read both. Im high risk.both my babys were early at 36w and 34w i dont even know where to begin looking for a doctor. Its been eventful. Usually.i dont get a positivr til im 2 weeks past my missed period. Even my doctor is baffled. Any thoughts im just curious lol