I had my first baby doctor appointment 2 weeks ago. Is it wrong for me to change my OBGYN? I got to…

I had my first baby doctor appointment 2 weeks ago. Is it wrong for me to change my OBGYN? I got to a health clinic for it and it's not the same exact doctor Everytime I see them but the lady who was my doctor was incredibly informative. I don't know if it's because this is my 3rd child but I would think she would tell me important things. Like give me prenatal prescription which she didn't (with my daughter the Dr did) and didn't even mention to go get over the counter ones, and when I told her how many weeks I thought I was. I told her I had a very light period the month before I completely missed it and it only lasted for 3 days. And that's unusual for mem. Mine are usually 7 days exactly everytime and extremely heavy and makes me sick. So I didn't know if I was 13 weeks or 7 weeks. So she tryed to find a heartbeat couldn't. So she took an ultrasound to see how many weeks I was which when I left I realized she didn't tell me how many weeks I was. Just very confused with that doctor visit. Also I mentioned how I have a murmer so my son was high risk and after I had him it was hidding and really soft But I told her how my heart's been racing and I seem out of breath and sometimes I'm just sitting there and it races. I asked did it have something to do with pregnancy and my murmer. And she almost laughed and said well if you don't have a murmer it can't cause it and if it went away it can't reapear. I specifically told her I still have it just not as loud anymore and I was told that it can come back as strong especially if you STILL have it just soft. I'm hoping I don't get that same doctor again.