First ob appointment?

Ashy • I have two amazing boys, born 05-30-2015 and 04-07-2017 and we are going to have another baby in December 2018😍😋

I am only 4 weeks I have two other children, both boys..

My ob that I will be going to doesn't check pregnancy tests before ultrasound appointments they do it all the same day. I have had two miscarriages before and all before 8 weeks and my ob won't see anyone before 8 weeks anyways.

So my question is when do you think I should schedule my ultrasound/ pregnancy test for?

They give me another at 20 weeks also. So please let me know what you think.