Thoughts please

I’m 4 weeks late with my period. I’ve been having a lot of headaches, random nausea, sensitive to smell and really bad heartburn in the morning. I took a test Tuesday morning and it was negative.. today I had a small amount of pink blood when I wiped.. my boobs are not sensitive like they are before I get my period. My emotions are all over the place recently. Has anyone else had a similar experience? Should i test again? Or could my period be coming? I’m sorry I know the obvious answer is take another test but I don’t want to waste money if I’m going to end up getting my period 😩