Hi mama! Yes, totally pwede ka mag PT kahit active kayo sa sex, actual sex won't affect the result, pero ang timing lang ng PT talaga ang mahalaga, hindi ang activity haha. Two days delayed is still pretty early kasi ang hCG needs time to build up, so best pa rin to wait a few more days or mag blood test na lang sa clinic para more accurate talaga, lalo na first time mom ka pa. A few of my friends waited until almost a week late bago nag-positive on home test, kaya don't stress too much yet, mama!