HIDA scan done 7 days after sex- home preg test was negative day of and 2 days after scan. But what if to early for test to be positive? Worried

Can retest in 12days. A urine pregnancy test, done correctly, gives a reliable result 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after missing a period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon, and thus lead to a repeat test. If a woman gets her normal regular period, then she is not pregnant, and a test is not needed.