Should i test? Cant makeup my mind

I know I have already asked but I need advice I have one pregnancy test. And my symptoms are that my nipples are purple dark purple like every other day. I have a non stop hunger and when I get full I'm hungry in like 2 hours. My stomach feels odd I'll feel sick like I'm going to puke but it never comes out. And after my husband and I have sex like right after I gag once and that's it. Also I have back pain every now and then. And when I try to lay on my stomach or my husband is on top during sex I feel like there is to much pressure being put on my stomach

Tell me what you think and give the best advice? I need the help

P.S I ended my period 4 days ago