Iud strings

Ok so I have had my iud for about 6 months and I check my strings frequently because I’m paranoid. Every time I touch them the 2 stings are together but here recently the 2 stings have been like like one is curled on one side of my cervix and the other is curled across from it. Like I know they can move but like the 2 strings aren’t together like they always were. Is that a sigh my iud has moved? Could I be pregnant? I have unprotected sex a lot and I’m kinda nervous. I’m supposed to get my period soon but it’s very irregular.