Baby 2

Hello I'm on my second pregnancy, and recently had a scare.. Had a bit of cramping and light bleeding... Went to ER and they did a sonogram but couldn't see a sac or anything.. Obviously I'm only about 2 weeks and 4 weeks according to lmp,.. My hcg level was 82... Had more blood work done today and gotta wait 2 days for the results.. Anyone else going thru this?