No ultrasound until 10 weeks? Ectopic?

They said it was standard, and I get that, but I'm terrified for this pregnancy to be ectopic. By the time they found out, wouldn't it be too late and it would have already ruptured? I know the risk is relatively low, but I know three women who've lost tubes, and one of them had to have a full hysterectomy. Wouldn't they want to do it earlier to prevent such a terrible thing from happening? I'm panicking, so please ease my fears or tell me what I can do! I live in Canada so there's no where to pay for a private ultrasound or I would.