Late period

Samantha

Hey guys, so I’m not trying to get pregnant but I’m on cycle day 52 and still no period. I’m usually irregular the latest I’ve been is 45 cycle days but I’ve been so tired lately and I’ve had a headache for almost a week now and I just had a sinus congestion all signs of pregnancy but I’ve had 2 negative urine tests. I don’t know what it could be and now I’m freaking out.