Opinions please!!

My boyfriend and I have been ttc for a month now. So yesterday I took a pregnancy test, it was negative. I was also late on my period by 6 days. Today I started bleeding so I just assumed it was my period. But all week my reasoning for assuming I was possibly pregnant was because I was experiencing all the symptoms. Tender breast, fatigue, mood swings, cravings, discharge and constipation. Now I'm experiencing it all but also abdominal pain and cramping, with very frequent peeing. With all of these extra symptoms that I don't normally get on my period, I googled them. Google told me it could be signs of a miscarriage OR an ectopic pregnancy. Should I go see a doctor just incase? I read this is very harmful to my health. Thanks guys!