What care should I be taking in case I'm pregnant, not bfp but if I am, I'm around 3.5/4wks

Jessica • 28,Married. FTM to Sebastián James 11.30.19.

I'm going to get blood work next week because 12 days late on my very normal period is way crazy. Anyway, in the meantime, what should I be doing in case I'm pregnant? I'm not drinking, i don't smoke, im not eating sushi or soft cheeses and I cut back on my coffee intake. Oh and I've been taking a prenatal for a while now just in case. Anything else I should start doing?