Very low beta at 16 dpiui. What were your beta at 14, 16, 18 dpiui?

I've done IUI's which all ended up negative. I did get pregnant on my first IVF though. At 11dp3dt (11 days past 3-day transfer, or 14dpo) my beta was 112. It rose nicely but I lost the pregnancy at 7 weeks. My friend went through an IVF cycle as well and at 9dp3dt (12dpo) her beta was in the 30's or 40's. She's in labor as we speak. Don't weigh the fate of your pregnancy on a beta. As long as the numbers are rising every 48 hours or so, and as long as you see a healthy heartbeat, everything should be fine. Good luck!