How much blood is too much?

Leina

I am 10 w 1 d and starting last week i spotted then the next day i bled a little more and it was pinkish but yesterday i bled quite a bit on and off throughout the day and it was a little redder this time. My step mom stresses me out and makes me sick using so many chemicals in the house, could that be why I'm bleeding? It's my second pregnancy and spotted one day with my son, if that helps.