My body feels weird

About four days ago I had very light brown discharge it was like that until yesterday and today my discharge is creamy/stretchy and normal color. Last night I did have cramps in my lower stomach and it was on and off the whole night. I don’t know if it’s my period or something else. I have about 7-6 days before my period starts but I feel very odd like I never felt this way. My body (mainly my stomach) feels very sensitive and I get fluttery feelings here and there. I been feeling like this since yesterday night my boyfriend told me to go to the hospital but I’m deciding to wait until the 21ST of this month (less than a week) for see my doctor for an appointment. Also me and my boyfriend don’t use any protection and he doesnt pull out. Anyone have any advice, suggestions, tips or just want to give their input I would really appreciate it