With my first I had negative 10 days after 3 dt and positive at 287 13 dp3dt with initially triplets.
With my second DE IVF I had positive pee stick 4dp5dt and beta of 113 5dp5dt with twins
Some pregnancies for some reason produce much higher HCG than others. I normally see positives with my patients with twins on 6dp5dt but this week got a lady 4dp5dt with a beta of 55, she repeats her beta today so we will see how it goes.
Normally though in all honesty with get positive pee stick on 6 to 7 dp 5dt