Arms keep almost falling asleep at night

💕

I know that’s a weird title, but that’s what’s happening. It’s when I’m in bed, starts in the middle of the night. They aren’t exactly falling asleep but they get like tingly almost, like I feel like I have less circulation in them? It especially happens when I lay on my left side, my right arm gets that feeling. I rotate what side I’m laying on often. Doesn’t always happen on my right side for some reason, but my left arm gets it then. I am 19 weeks and on blood thinner shots if that makes any dif

Anyone else? Anyway to avoid this or is this something that’s just gonna continue lol