Took a test

Mila

So I’ve had my period and yes it has been heavy but I still have symptoms like I could be pregnant for example: nauseous, back ache, gained a lot of weight for a skinny girl, dizzy. I took a pregnancy test and got negative but I accidentally dipped it in a little to far and it was later in the day and I drunk a lot of water so I don’t know if it could be false or not. I would be 3 months pregnant now. I just need reassurance because I know I’m overreacting