Im so nervous. When I was pregnant with my daughter they did my check ups but If I felt like it was…

Im so nervous. When I was pregnant with my daughter they did my check ups but If I felt like it was something wrong. I could hear her hb. now with this pregnancy, I feel like my appts are too far apart and I never hear the hb when I go. I havent heard it since my 8wk appt I have another one tomorrow, and Im a nervous wreck, because lol Ive stop feeling pregnant. wish I could sleep.