Leg cramps - is this normal?

Hi! First time going through this, I'm 39 and 5 weeks 4 days today. My symptoms have mostly been very mild other than fatigue. But the past few days my legs/calfs have been SO achey and sore, it is almost unbearable and keeps me up at night. Has anyone else experienced this in early pregnancy? Any tips on how to relieve the pain? I walk my dogs usually 30 minutes a day which helps while I'm walking but by the time I'm ready for bed I'm in a lot of pain again 🙁