What should I expect?

I’m 13dpo, so, almost 4 weeks. I tested positive yesterday. With my first pregnancy, I didn’t know I was pregnant until I was about 7 weeks. Never noticed any cramping. The only symptoms I had was randomly falling asleep. But this time around, I am cramping a lot. Kind of like period or gas cramps. But it’s not those. It’s like mild pinching feelings in my ovaries, mostly my left. I am also feeling so sluggish. I’m imagining the sluggish feeling is going to just get worse. I don’t want to do anything and I have so much to do. I had some ovary pain too. I see my doctor on the 21st. I feel a little nauseated too. I’m just worried about miscarrying.

How was your second pregnancy? Symptoms?