B.C.
I've had a tubal pregnancy and wouldn't wish that on anyone! I started spotting early and it continued for about 10 days before I lost the baby to surgery. I thought that I was on my period, and had no idea why I felt the need to take a test, but I did, and it came back positive. Besides the bleeding, I didn't have the severe symptoms until I was about 5-6 weeks along. My symptoms included spotting, cramping on one side (not both), and it got so bad that I had to call 911 and be taken by ambulance.
Your symptoms don't lead me to conclude a tubal or ectopic pregnancy, but if you have any concerns I strongly urge you to take a test and call your doc. asap. I wish the best for you!