Faint line. When should I go to the OB?

Ok so many many reacurring misscariages. Ttc with low morphology. Should I call the OB tomorrow and get blood work done so they can monitor me? Or should I wait untill AF was supposed to come and then call them if I’m still pregnant? Ps I’m 9dpo with faint lines on all my tests including first response and internet cheapies.