is 22 miu low for 13 dpo?

I got blood work done today and the doctor said the line was faint so he did blood work & it was 22 Miu..please let this pregnancy be viable. I am 35 & can barely afford <a href="https://glowing.com/glow-fertility-program">fertility treatment</a>. was going to do an <a href="https://glowing.com/glow-fertility-program">iui</a> this month but he thought I was ovulating on the side I have no tube but a u.s showed my biggest follicle on my side with me tube. I am a wreck hoping this is a good number and it doubles..please let me know your numbers in early pregnancy in hopes I'm ok..