curiosity. . .

so hubby & I have been TTC over a year now, with a miscarriage last halloween. I've been having a lot of symptoms lately... but I would only be about 2 weeks in if I am... my question is I've NEVER had swelling in my fingers, like... ever? but ! my ring that was sized a size too big for me, I've worn it for 4 years now, and it's literally stuck on my fingers, as well as I'm noticing really bad swelling in my legs/feet. is this a sign of pregnancy or something else I should get checked maybe ? my blood sugar and all that is great so I don't know what could be causing it.