So my husband and I did <a href="https://glowing.com/glow-fertility-program">IVF</a> for the 1st time this month after 6 failed IUIs.  On Jan 18 we transferred one grade AA embryo and after POAS today ( I couldn't wait any longer) it was positive!! So this was 7 days after my transfer. This isn't too soon right?? I tested 2 days ago and got a very faint positive so I think my levels have increased a lot in two days!! Any thoughts?? Also, how do you calculate your due date?