I need advice

So I already have a 3 year old daughter & ive been with my SO for almost 6 years & were fixing to get married in April , well I am on depo & I know it's not 100% well I was on period for almost 2 months & I feel weird idk if it's the depo or what, well now my dog is acting weird with me keeps following & laying on me. I've already taken 4 pregnancy test they all came up negative. I have 2 more pregnancy test but i guess what I'm asking should I take one in the morning or wait a couple more weeks ? The only thing I have is being nauseous & feeling weird.