Mirena iud no period

Hi guys! So I got the mirena iud inserted December 17, 2019. I got my period in January on the 8th till around the 13th. Now it’s February and I was supposed to get my period on the 5th, but I haven’t yet. I felt cramps on the 3rd, but only for a few minutes then they went away. Is it normal for the period to stop this soon after getting the iud? Bf and I only had sex twice since I’ve gotten in inserted due to long distance, but we used a condom both times