Slight cramps?! Ultrasound/heartbeat question

Summer

Hi! So I've had 2 miscarriages already (so no babies) so to be honest I have NO idea what is normal vs what is not normal. I have slight cramps on my right lower side today, just like I did my last pregnancy. I'm 4w6d. I've been on progesterone since 3w6d. I have been a raging B, I want to scream at everyone I come in contact with, god bless my hubby 🙊🙈! But no other symptoms at all. Just tired. No sore boobs, no nausea, no nothing. Ugh. I've been calling my Dr since last week everyday to make an apt and they won't let me make one yet. I've gone for bloodwork 2x already. HCG at 4w4d was 800, so everything seems to be in line. Trying not to stress but that's impossible right now. I'm so aggrivated and sad. I'm not sure if the cramps are good or bad or could be from me getting so stressed and worked up. My hormones are going nuts right now!!

***update...shortly after posting this my Dr called and wants me to do a 3rd round of lab work today and also scheduled my first ultrasound for next week, I will be 5w5d then...is that too early to see or hear the heartbeat? I know I was able to see and hear it last pregnancy at 7w2d but that ended shortly after...