Congrats on your pregnancy! Honestly, soft drinks ay okay lang in moderation, but a lot of us moms try to limit soda because ng caffeine at sugar content, better to stick with water, fresh juice, or milk para sa baby mo. Kaya naman siguro best check with your OB kung gaano ka-okay for you specifically, lalo na since it's your first time. I've had friends na nag-enjoy ng occasional coke throughout, pero yung iba nag-switch completely to healthier options from the start, both had healthy babies naman! The important thing is stay hydrated at listen sa cravings mo in a balanced way.