R.M.
I had the same spotting when I was preggo with my twins. I know it's hard to do, but try not to stress about it, the Dr told me the same the your Dr told you, it's perfectly normal. In fact that pregnancy turned out to be easier than the first pregnancy (first pregnancy was reall hard on my body, lots of morning sickness, miserable, and then 2 weeks bedrest at the last, second pregnancy was a dream compared to my first). I'm sure all will be well, just take it easy when you aren't working and it'll be fine!!