Sore breasts ..spotting..stuffy nose..fatigue..nausea..sickness..feeling emotional..food aversions..stomach cramps.. you dont have to have all of the above. You don't have to bleed to be pregnant either. Some people just get some implantation bleeding but its not what everyone experiences. It isn't common to bleed every month. In fact if I bled every month whilst pregnant i would go to the hospital as its a scary sign.
My boobs hurt really bad before i found out if your pregnant you should have period like bleeding sometimes bleeding is ok but not filling a pad bleeding. If your worried your pregant take a test or gget some blood work done to find out for sure.