Wondering

Hi all. My husband and I have been TTC for 5 months and last weekend, 5 days before I anticipated AF (I have very regular periods), I had HEAVY bleeding. Very, very heavy. I had sore breasts and nausea before then and now, nothing. Has anyone experienced this? I'm thinking early term miscarriage, but not sure! Any feedback? I talked to the dr, but they don't want me to come get blood work done until Nov 3.