Please help

My period shoul start in 3 days and I have just found out that I’m pregnant. The bad thing is that I’m having tooth pain for more than one week now and I have been at my dentist and she gave me metronidazole antibiotic to take. She asked me if I’m pregnant but I told her no I’m not because my husband and I BD only one time in my fertile days so I was 100% sure that will not get pregnant this month so I took already 8 pills 🥺 I’m so worried 🥺

Last year had 2 miscarriage and I’m worried that this time also gonna happen the same because of antibiotics that I took. Anyone know anything about this medicine?