34 weeks and cramping

Hey ladies just wondering if anyone’s had anything similar or if I should be concerned. Last night I was awoken at 3am because I had bad cramping, it was similar to when o used to get my period and gave me the sensation of having to go to the loo, it lasted about 45 minutes before I was able to force myself back to sleep, I haven’t had any issues today and Bub has been moving like normal. I have a midwife appointment tomorrow and I’ll bring it up then but just wondering! Thanks