Dr keeps making me get blood draws

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So I went to get a blood draw at 11dpo my hcg was 22 progesterone 27.

2 days later at 13dpo hcg was 63.. they said come back in 4 more days to repeat.. 4 days later at 17dpo hcg is 263.. all seems good right?? Its doubling.. but Dr wants me to come back AGAIN on Tuesday for another one.. its making me think she doesn't think its going up enough.. I've had a couple chemicals but no major MC and I have had a healthy prior pregnancy that happened right away so no history of anything bad.. im so nervous lol