High Hopes or pregnancy symptoms?

So my husband and I just started trying to conceive this cycle. I’m not sure when I ovulated, I’ve been tracking bbt and cm but I have some medical problems that make this hard to accurately track. I was also told that due to these medical issues I was high risk for miscarriage throughout the entire pregnancy and I may experience difficulty in conceiving. Due to all this we are trying not to get our hopes up (which is so hard) and basically preparing for the worst.

However Af is about a week away and I am feeling gassy, nauseous, dizziness when getting up, light cramping, and just a general uneasy stomach feeling (like it’s constantly grumbling and making noise) could these be early signs or am I just too hopeful and seeing symptoms where there are none?

I am so afraid to take a test in a week or so and be disappointed.