Confused....

Cathy
Good morning! Need some advice very very confused. On weds I took 2 equate pregnancy test both came out a very very barely noticeable positive. Took a family dollar one 1 day after still the same. Than I bought 2 of the dollar tree brand and they both came out negative 3 days after the 3rd test. Took 2 clear blues this morning and negative again on both. My period is due tomorrow. Not feeling to well for the past week fatigue, urinating a lot, stomach cramps, mid n lower backache, n extremely tired. Can I still be pregnant or expecting to get my pms tomorrow. I have an appointment on weds but anxious to know. Can some help?