No sonogram since May

I’ve had not one sonogram since May that was right after they confirmed my pregnancy this is not my first baby and I know that they should have giving me a sonogram by now they have my due date as one date and then it was changed to another date which was January 11 and now we’re having arguments over when’s my due date Is I know January 11th is when he is due I know for a fact the day I got pregnant (April 19) why can’t they just get their facts together give me the sonogram measure the baby and get the date right it’s so freaking annoying and on top of that I’m high-risk they really need to get it together