Cramping during 1st trimester?

Rickyia • 💞😘

I don’t know if i should be worried but i cramp sometimes on & off on the lower part of my back for no longer than 2 minutes, is that normal? I’m only worried because I have been trying for almost two years since I got off nexplanon 😩 I just hope everything is ok! I’m only measuring at 3 weeks & 2 days but for some reason it feels like I’m further along.