Help!!

My period was 5 days late then I started to lightly bleed brown blood for about 3 days then started bleeding red for about 2 or 3 hours then the bleeding stopped and I started barely bleeding brown again. I've been cramping my boobs have been sore for about 2 weeks now and I get very nausea every morning and it last for about 1 hours. I haven't taken a test yet! Somebody please give me advice I've been ttc!