HCG was 22 now 44! And I have spotting ☹️ TMI!

Hello ladies.

I had my 2nd beta today. It was 44. 1st beta was 22 so it’s good that it doubled but I had light pink spotting this afternoon and it stopped and now I am having some faint cramps 😭

The nurse said it can be implantation bleeding but I’m not sure that normal with faint cramps. I’m 4+1 today. Pregnant via my first IVF cycle.

Today & yesterday test