8 days

My period isnt due for another 8 days but man my boobs(mainly my nipples) have been sensitive and hurt. My left one hurts more than my right and my areola look a bit darker. Ive also been having a super itchy belly button area and i feel like my indsides are streaching. I took a shower last night and it felt like my lower abdomen was stretching wayy down and kinda out to the sides. As well as my lower abdomen has been feeling kinda firm. Its probably too early to test and I dont even know if these are legit symtoms. With my Angel baby i was throwing up every morning for a week and was 2 days late..are these symptoms you have experienced and then took a test to find you were pregnant? Advise and thoughts are more than welcome. Thanks so much❤