Advice please???

B❤👫👦👧🤰❤
Had 2 faint positives. Late on AF 5 days. Today I got some bleeding. When I wiped. I had to go to town so I put in a tampon started cramping when I got home I took it out to check and about half the tampon had blood in it and the cramping stopped. Been having tender breast fatigue back pain and nausea please help give me some advice