No one ever sees these anyways.. but 😔

So my period is 13 days late.. I took a pregnancy test yesterday and today and both were negative. Its been 18 days since we tried to conceive. Ive been cramping and nauseous every day. Ive been having muscle aches, diarrhea, and now acid reflux. No spotting or any sign of pms. I wasnt expecting to get pregnant because I feel like I cant have kids. But with all these symptoms that I have been having for almost 3 weeks straight, and the absence of my period it has me wondering .. But im still getting negatives. Maybe Im not pregnant. I guess it will never happen. Its too good to be true. I know we can miss our periods every once in a while if we dont ovulate, but I already missed my period in October.. The doctor said I didnt ovulate. I got my period on the 18th of November which was right on time. My periods always come around the 17th. But this month nothing. We tried to conceive on the 8th of December. Maybe I ovulated later then I thought, and thats why im getting negatives. Or maybe theres something else going on. But my doctor has ran a bunch of tests on me to see if anything else could be causing these symptoms, and nothing.. I am completely healthy. Took a blood test 10 days after the sex and my hcg levels were 2. Wtf is going on with me.. Ive had some kind of odd symptoms every day, today I dont really ‘feel’ pregnant... ugh. Im just getting very upset and discouraged.. ive never felt these symptoms before in my life, especially not for almost 3 weeks with no period.