Ectopic pregnancy ??

Arias

I just got my BFP Sunday 12/22 .

Confirmed at dr office 12/23 I’m 4weeks.

12/26 I go to ER from left side pains and after 3 hours , I’m told they couldn’t see anything from ultrasounds so they’re unsure if it’s a possible ectopic pregnancy or if it’s just too early .

Anybody who’s gone through an ectopic could give me any kind of advice ? I feel lost and helpless.