Hello ladies, this is gonna sound ridiculous but I need help....and just to note I already k ow I'm pregnant and that HCG doubles....

My question is....I went for bloods 3w4days since the first day of my last period....my HCG was 100... is that normal? I should imagine I was only 1-2weeks pregnant since conception and I'm worried since I had an ectopic in march....any advise or anything would be much appreciated