Ay nako, totally nakaka-alala yan lalo na first time mom ka pa! Honestly, recurring infections during pregnancy are pretty common kaya hindi ka nag-iisa, a few of my mum friends had the same thing, and the doctors kept adjusting treatments until it cleared na. Since your OB prescribed the fluomizin right after the metronidazole, it means siya ang nag-assess na kailangan talaga ulit ng treatment, so trust her judgment, she knows you're 33 weeks na and wouldn't give anything unsafe for baby. Pero if you're really worried or kung bumalik pa ulit after this round, definitely ask your OB directly about the back-to-back suppositories kasi siya lang talaga ang best person to answer about your specific situation at kung safe ba talaga yun for you at sa baby. Wag mag-atubili tanungin, yan ang OB mo para dyan e!