Starting to think I really am pregnant ..

Okay so I started testing at 11dpo .. And I saw a faint line so I retested at 12dpo seeing another very very faint but visable line using fmu .. Today my boobs started hurting so bad especially my nipples .. I've had a stash of the dollar tree brand hpt .. So I decided why not test again it was late this afternoon though but I didn't want to wait untill in the morning , so I tested and it was lighter then the test yesterday about like the one I saw at only 11dpo .. I don't know if it has something to do with the fact that it was late and not fmu or that it's just a cheap test .. But I'm going to get a better test tomorrow so I can find out for sure ... Has this happened to any of you ?? Sorry the very bottom is a squinter ... You can tell better in person .​​​