So scared of possible miscarriage

Shanika • I am a mother to one daughter and is expecting my 2nd daughter 👶🏽11/28/16👶🏽
So I could not sleep last night and then my stomach started hurting I started feeling nauseous and gagging so I got up and drank water when I went to lay back down I had to go back to the washroom and had a very loose bowel I'm so scared becuz I had this my last 2 pregnancies and lost the babies I have been tryin to stay hydrated has anyone experience loose bowels while pregnant and was fine?? Plz help