please see your gynae. spotting and bleeding thou can be common during pregnancy but it's not a norm and it depends on the cause of it which differs in every pregnancy. My gynae always tells me to see him if I experience spotting/bleeding of any sort.
I had spotting during early weeks like you. went to KKH for check just to make sure everything is okay. my advise: just get it check by a gynae to be safe.
brown spotting is common.. but red is not. pls go to kkh urgent o&g to check it out. or go to ur gynae. u may require medication to support ur pregnancy.
depends on volume and color. i had light brown and dark brown spotting. it differs with each pregnancy so best to check with gynae.
Should be okay as long not a lot and no pain. But do see gynae if u r worried.