Hello all, I've been TTC for 3 months, this will be my fourth. My periods are usually like clockwork down to the day. This month my AF has arrived 4 days early with no pre flow cramps/back ache usual symptoms. My boobs are super achy and I'm super tired and I'm getting daily headaches which is v unlike me. I would think this is implantation bleeding but it seems heavier than I have read! Has anyone had a heavier flow pre pregnancy? I don't want to get my hopes up but it's very strange to get a period so early and without the usual back ache! Thank you!!