pregnant

Sydney
Y'all so I'm pretty positive that I'm pregnant. I haven't had my period for two months now. My boobs are super sore and a little swollen. My back constantly is cramping and I feel naseas off and on. I took a test like two months ago and it said negative then I tried another and it was invalid. What are yalls thoughts? Am I just in my head or do I need to seriously look into it?