pregnant

Hello ladies well , good morning ! So lately I haven't been able to sleep I have been sleeping till 4 AM and I dint nke why .... also I don't wake up with a flat tummy how I used to I wake and go pee and stay bloated for some reason . Now my period isn't due until 8 days so ? I'm thinking I could be pregnant but I don't money to buy test until Thursday... but any advice ?