I think I might be pregnant.

My period is the most regular and abundant thing I have in my life. This month it’s only there when I wipe after using the bathroom, and right before my period I was having a lot of brown discharge. I took a test yesterday but it came out negative, however I’m afraid it could be a false negative, since my period is acting weird and it just NEVER DOES.

I need some thoughts and opinions on this before I go and spend money on getting a blood test.