My Vagina Has Been Swollen For The Last 4 Days

My vagina has been swollen for the last 4 days going on to 5 ive been feeling sick and now I noticed my nipples are sore and swollen as well and my period was 3 days late but I started bleeding after the 3rd day and it didn't stop for 4 days in those 3 days my stomach was hurting bad it felt like cramps