I Will Be 13 Weeks Pregnant Tomorrow And For The

I will be 13 weeks pregnant tomorrow and for the last week I have been having some symptoms. I'm just wondering if this is something I should be worried about for my health and my unborn childs health, I know some of these symptoms go along with pregnancy but not all. My symptoms include:
Dizziness which is made better by lying down. When i get dizzy I get a shortness of breath.
Nausea: I have had little to no morning sickness with this pregnancy.
Lower right abdominal pain which has been gradual. Its sharp and achy.
Also twice this week leading up to my abdominal pain now, I've felt a spasm in my lower right abdomen which kind of felt like I pulled a muscle. What does this sound like?