I just had my LO 10 months ago. I'm breastfeeding so I havent had my period yet. 2 weeks ago my Hubby and I got drunk and had unprotected sex without thinking about it. I'm not on birth control for medical reasons. We always use condoms but the one time we didn't is making me nervous. I had some brownish pink ish discharge while wiping. Could it be implantation bleeding? Maybe the start of a period?