MrsPP: that must have been scary! I would lean towards saying it's not a miscarriage. How far down the road from your AF due date were you? Some people experience chemical pregnancies and it's marked by a little heavier than normal bleeding and will happen in that their period is just a few days late. Otherwise, you might have just had a very thick lining and overall, just a different period. Throughout our lifetime our periods can be different (heavier or lighter) from time-to-time and that may have been your case. Also TTC, does a nice job overall of skewing things a bit. I can't remember if you were taking any hormones, especially estrogen to plump your lining or an HCG shot which also plumps the lining?
Yelle: I get you on the reconsideration thing. Many a time I've thought that I just can't go on anymore (and I've only been at it for about a year and a half). At some point it is okay to just throw the towel in and move on emotionally. Not that I want to encourage anyone to take on debt, but have you thought about taking out a loan for IVF? There are companies that specifically lend at lower rates for IVF. I just offer it up if the situation is that you don't have the money right at hand and if you did, you would move forward with IVF.
AFM: today is the due date of my first miscarriage. I am anxiously willing this day and week to be over so I can move on. We do start our inseminations again this Friday which is also anxiety producing but at least it's a forward moving prospect!