this is very normal around 4-6 weeks called implantation and mild cramps are common with brownish spotting. if you had bright red blood with heavy cramps that would be a sign for concern.
on friday 6/19 i will be 5 weeks pregnant i found out on tuesday 6/16 was having brownish spotting a couple days prior. before i found out i was right around the time of my cycle roughly a week late maybe a little less and i am still having brownish spotting with a minute amount of pieces of tissue (i assume). i also have very mild cramping not like period cramping a lot less but just enough to notice sometimes i get a pain that shoots across my stomach (like a nerve misfiring). not necessarily painful but i notice it. is this normal what can i do to help? this is my first so i suppose i am nervous.