My period is enough to fill a pantyliner and watery pinkish now turning brown?

I understand that you all are not doctors I would like the opinion of someone who may have had this happen before or possibly no what I may be experiencing, therfore until my doc appointment you may gv me some ideas or questions I can ask. My af wasnt due until 4th of this month but its here today techincally nt too early, except any other time my pms is usually of a normal pad wearing flow and 7 days I experienced this last month with a negative pregnancy test and std screening I thought nothing of it last month it, lasted 5 days very very light spotty almost sometimes I wouldnt bleed at all during a day just spot.now this month today same thing agian,I dont need a pad just a pantiliner must I add negative pregnancy test and I have been bloated since last period dnt really feel preg, wouldnt hurt if I were and I feel queasy