14 weeks feeling faint/dizziness/sweats

I woke up this morning and drank some water. As usual I make breakfast for me and my boyfriend and as we were eating I knew I wasn't feeling good. I was wearing a thin layer cardigan and felt hot so I thought maybe I'm just hot so I took it off. Then all of a sudden I felt the need to leave the table to lay down. So I rushed over to the living room and before I even got there I called my BF to help me. I felt like fainting and I was getting dizzy and I lost my vision for a slight few seconds and had to drop on the floor because I couldn't see. I felt hot flashes and sweats on my back and forehead. My BF helped me to the couch and I laid down to rest and drank some water. After 3-5 minutes I was feeling fine all of a sudden. I googled this and people are saying it was a drop of blood pressure. I haven't called my doctor yet because I'm seeing her today. Has anyone else experienced this? BTW, I'm 14 weeks pregnant and this is my first pregnancy.