Pregnancy l?

Hey everyone so I have a one year old boy, and I’ve been on the iud for 11 months!

So this is weird idk but when I was pregnant with my son, the only symptoms I had was EXTREME gassiness lol! And all of a sudden the last two weeks I’ve been the same. I’ve had my period about two-2.5 weeks ago, and I feel my strings and everything.

Could it just be a coincidence? Or should I take a test?