cervix hurts

3👼🌈💖2018🌈💙2020💖2021💙2023 • God's timing is perfect🙏⛪

I'm 3 months PP and my cervix started hurting I don't understand why, could it be a sign of a bladder infection or could it be that I'm not healing right? at my six week check-up they said everything was fine and this pain didn't start until 3 days ago!