My SIL had <a href="https://glowing.com/glow-fertility-program">IUI</a> 16 days ago. She has tested positive on digital pregnancy tests and went for blood work to confirm yesterday. She started to spot a brown/light pink & is worried. I said it could be old blood flushing out because she was due for her period any day this week. Anyone who’s had this procedure or who knows can you please give your input!! I didn’t think it was implantation because it’s 16 days post the procedure! & she has slight cramping.