BFP and positive blood test but hcg only 13

Stacey • My 🌈 baby Evelyn Arya born 4/5/20

Ovidrel shot was 14 days ago. Surely my dr isn’t worried about it being from that? The nurse said congratulations and we need to take more blood tests every 2 days (I’ll be in NOLA so can’t get the next one until Monday 😱😥)

Here are my frers from 11-13dpo at the bottom. Cheapies are faint but I guess since they pick up 25miu they would be light still.