Help me

Brittany • Love it
Ok so I was 3 weeks late in my period last month n 2 weeks early for this month. I always start on the 1st week and bleed for 7-8 days. Well I bleed for 3. And I should have started 4 days ago. And I haven't. My nipples are purple and my boobs have been hurting for 2 days. Small cramps here and there. Nausea, tired, head aches back aches. N sore to the bone. I've taken 10 pregnancy test and they had said -. Earlyer in the month. But I'm wondering if I should try now it wait a lil longer.