Still pg, miscarrying ? Vanishing twin? Anyone have low rising hcg and healthy baby?

Tanisha • 🍳 Married 19yrs RN, mommy to 3 🙍🏻‍♀️16yr old, 🙎🏻‍♂️14yr old,🙎🏻‍♂️12 yr old , 👼🏻elijah 12/15/17💙 🌈👶🏻edd 4/29/20

I need your opinions. I did my 3rd <a href="https://glowing.com/glow-fertility-program">iui</a> on 4/4 had sex before and after <a href="https://glowing.com/glow-fertility-program">iui</a>. I had two follicles , one on each side. 4/15 hcg 0 , 4/19 hcg 4 , 4/22 hcg 11 , 4/26 hcg 12 ( went to er different lab hcg 16) bleeding since 4/25 and was told to stop progesterone 4/26. On 4/26 took a digital which said pregnant. NP called and said she didn’t think pregnancy was viable because numbers weren’t doubling. I went to Er after our conversation for left side pain , ultrasound was normal they said it would be too soon hcg was 16. This is my 8th miscarriage if it is and my tests should start to get lighter at this point especially if my count was supposedly only 16. I know hcg can stay in you but my count was low and my trigger shot didn’t take this long. My test are still dark. 🤷‍♀️ vanishing twin and still pregnant with one?🤷‍♀️ tubal ? 🤷‍♀️ I have a repeat test on Monday that I asked for. Anyone have this happen? I’m a nurse and I’m baffled 🤦🏻‍♀️bottom test was yesterday top 4/29