Hcg levels

Hello guys so I got blood work drawn this past Tuesday (3+5) and it was 43. Yesterday went back at 4+1 and it went up to 283 in 3 days. Does that seem like a good progression! Also been getting sharp cramp couple times a day that lasts for about 10 seconds right in the lower abdomen is that normal. It’s my first pregnancy and everything is making me worry! Thanks guysss!