<human>: Provide a brief overview of the text.

I'm a mid-twenties college student and my boyfriend is an early twenties guy who for now, works for a living. I decided to transfer schools recently (Really excited tbh.) This has been pretty stressful. We've been together for a year now.

Recently some things have come up and he went to get a blood test done for STDs. (His parents kind of pushed him into it but that's a whole  other story) Lately, he's been hassling me about getting all sorts of appointments made to check my health. I don't have health insurance right now and doing all of this would be expensive in my state. He wants me to set up an appointment to get a blood test for STDs. My Gyno has never recommended this and I've asked about STDs and STIs. He also wants me to go and get a mammogram. I agree that I should do this, but I have no idea of the medical cost for this type of examination so I told him that was also a no go for the time being. He wants me to go do that because I've been having pain in my chest and sore breasts. I think this is probably caused because I don't have a bra that fits. Ordering bras for larger busted ladies is a bit hit or miss. (Yes I know about abrathatfits! :) ) 

I don't know how to make him understand that asking this of me is starting to make me feel uncomfortable. I don't have the money that he has to pay for these appointments. As well, he is still able to be on his parents insurance at the moment and I am not. Everything for these appointments would be coming out of pocket for me. Its super annoying and agitating to repeat over and over that I cannot afford all of these appointments he wants me to schedule. I already have the stress of school, and this argument is stressing me even more.
<bot>: how do I politely tell my boyfriend that I cannot afford all of these medical exams he wants me to get because I don't have a good enough financial situation?