Is it okay to wear non-toric prescription contacts in eyes with an astigmatism?

I just ordered my first pair of circle contact lenses. My prescription is left -2.50, right -3.00. I didn't realize that since I have astigmatism I would've needed to order a special pair (toric). When I receive my lenses, would it still be safe to wear the lenses with the prescription on them even though they aren't toric for my astigmatism?
Please don't just say, "call your doctor and ask them", that's not helpful. It would be nice if a person with medical background or someone with experience in circle lenses answered.
Thank you!

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