Sharp left side abdominal pain

I feel like I am the only one getting this! This pain is so intense, I go back n forth is this early labor. Is this normal. How can this hurt so much and be ok. Is the baby ok. You know the normal first time this far in pregnancy scares. Lol and I know it's normal and it's the muscles, but wow it doesn't feel normal. I had a miscarriage at 15 weeks, now I'm at 18 weeks 4 days. Maybe because of the miscarriage I stay a little more scared than normal? I'm telling you this blog is a blessing to have support from other pregnant women.