Confused!

About to be 2 months pp and I believe I’m pregnant again.. so I’m not 100 percent sure if I got my period or not bc I bled for about 4 weeks, as soon as I stopped bleeding and got the okay from my doctor we started having sex again unprotected. 2 days later from that day of being cleared I started bleeding again but I think it was my period bc it was exactly 4 days just like my period was before I got pregnant. Is it possible to be pregnant from the two days we were having unprotected sex before the “period”? I’m now about to be 8 weeks out and I’m having pregnancy symptoms (examples: creamy white discharge, nausea, and cramping in the abdomen area) I don’t usually get period symptoms so I’m confused 🤷🏽‍♀️ help a girl out! Someone shed some light on what they know with this stuff! I’ve always heard youre very fertile the few months after giving birth 🤷🏽‍♀️