Is it too soon to take a pregnancy test?

Ann • Very happily married💍Beautiful baby girl💗

Six nights ago my husband came in me while I was ovulating. My ovulation period is over but for the past two days my lower abdominal area, right around where my uterus is, has been slightly cramping, I’ve been a little nauseous, my back and hips have been aching, and I’ve been getting sporadic headaches. Today I woke up and when I peed I saw a clearish/slightly pearly mucus in the toilet paper and I have a metallic taste in my mouth. I’ve also been very tired, my throat is sore, and it feels like my lymph nodes are swollen. My next period is due to start in 12 days but I’m wondering if I can take a test? And thoughts?

Update: light blue veins appeared on my breasts and I feel like I’m getting a cold or sinus infection.