Iui done on 9thjuly.1st beta hcg on 22 july 4.7 , 2nd beta hcg on 24 july 7.8. worried about low hcg levels.should i continue pregnancy ? no cramps/sy

Expected increase : In early pregnancy hcg levels should come close to doubling every 48 hours. The actual level of hcg can vary widely depending on day of implantation, individual etc and therefore the level of hcg is not as helpful as the amount of rise in hcg over time. Unfortunately early pregnancy is a difficult time when there is no test that will tell you for sure if a pregnancy is normal or not. Hang in there