Anak, please go to your OB or ER right now, fever during pregnancy with UTI symptoms needs proper medical check, especially with your baby's heartbeat changes. Hindi pwedeng antayan lang ito, kailangan ng doctor to make sure everything is okay with baby and para ma-treat mo ng tama. A few of us mums from the community had similar scares early pregnancy, at ang aming doctors talaga ang nag-guide sa amin through it, water and juice helps, but antibiotics prescribed ng doctor lang ang kailangan, at kailangan may ultrasound check din para sa baby. Ang worry mo is valid, pero please don't delay getting checked, that's the safest thing for you both. Sending you strength, mama.