Aw, normal lang talaga yan, mama! A few of us went through the same thing when we switched to mixed feeding, and yung babies namin nag-adjust din within a week or two, pero really, best to check with your pedia about how long para sa baby mo specifically kasi bawat baby different, and they can also monitor the weight to make sure everything's on track. The poops should settle once tummy niya na-adjust sa formula, kaya don't worry too much, mas importante na kumakain siya and latching pa rin kayo, which is great! Just keep an eye on her output (wet diapers and poop) and if you're really worried, bring it up sa check-up mo na rin.