Cramps, sharp pinched, dull back ache!

Are these things normal in early pregnancy?

I’m 5w+4 today. For the last couple of days I’ve been having sharp pinching on each side of my uterus. It’s quick and rotates sides. It’s not cramping though with this just the quick sharp pinches

Ex: in the morning it’ll start on my left side and it’ll be this sharp pinch feeling on and off for a little bit and then I’ll have nothing and then later in the day I’ll feel the same thing on my right side. And then sometimes I just feel it in the center of my uterus.

I’ve also noticed that Once a day I get this - moderate, all over cramp, that turns into a kinda lightening crotch feeling/ache pain that will radiate from my lower back, to my uterus and rectum that’ll last like 5 seconds (usually happens at night) and then I’ll be fine. No aches, cramps or anything when sleeping.

I have some back pressure during the day but I think that’s because of my mattress more so.

Is this normal? Like ligament stretching or should I be worried it’s the start of ectopic symptoms?