Confusing pregnancy tests

So I have taken 6 pregnancy tests.. My very first one was positive.. I took one the very next day and it said negative.. For the next 2 weeks I took them randomly.. All negative.. Then I started bleeding very lightly for about 3 days .. But it was more like heavy spotting.. I had stopped my birth control back in April when I didn't get my shot.. Before the bleeding I got sick to my stomach a lot and was constantly tired.. Now Im just peeing like 30 times a day.. Im trying to get pregnant.. I haven't taken a test sense I stop bleeding bc Im afraid it's gonna say negative and I don't want to get my hopes up.. What do u think.. It's there a possibility in pregnant?? Should I just stick it up and buy a test???