Prevent TextInput box from starting small - react-native

Question

I didn't have this problem before, but for some reason right now, my text input box is starting with 0 and it won't start with the place holder I had set. When I delete the 0 when I start entering, it goes away and sort of expands, with the place holder seen. Does anyone have any advice on how I can make it start with a full-text input banner and without the 0?
Here are pictures of what is happening:
Starting
After clicking into text input
Here's my code:
return (
<View style={styles.container}>
<TextInput
style={styles.input}
placeholderTextColor="#aaaaaa"
secureTextEntry
placeholder='Blood Pressure'
underlineColorAndroid="transparent"
autoCapitalize="none"
multiline
onChangeText={(bp) => this.setState({ bp })}
value={`${this.state.bp}`}
/>
<View style={styles.modalContainer}>
<View style={styles.innerContainer}>
<TouchableOpacity onPress=
{
this.updateInfo,
this.onFooterLinkPress
}
>
<Text style={styles.buttonTitle}>Submit Data</Text>
</TouchableOpacity>
</View>
);
Styles:
import { StyleSheet } from 'react-native';
export default StyleSheet.create({
container: {
flex: 5,
alignItems: 'center'
},
title: {
},
logo: {
flex: 1,
height: 120,
width: 90,
alignSelf: "center",
margin: 30
},
input: {
height: 48,
borderRadius: 5,
overflow: 'hidden',
backgroundColor: 'white',
marginTop: 10,
marginBottom: 10,
marginLeft: 30,
marginRight: 30,
paddingLeft: 16
},
button: {
backgroundColor: '#788eec',
marginLeft: 30,
marginRight: 30,
marginTop: 20,
height: 48,
borderRadius: 5,
alignItems: "center",
justifyContent: 'center'
},
buttonTitle: {
color: 'white',
fontSize: 16,
fontWeight: "bold"
},
footerView: {
flex: 1,
alignItems: "center",
marginTop: 20
},
footerText: {
fontSize: 16,
color: '#2e2e2d'
},
footerLink: {
color: "#788eec",
fontWeight: "bold",
fontSize: 16
}
})