Help????

So I'm ttc and my bf finished in me the day of my period...didnt know i was getting it super irregular....but when it started it was instantly heavy no spotting or light flow just bam murder scene...but it only lasted 2 days of heavy flow then went to off and on for 2 more days so in total 4 days. But now im cramping really bad and when i lay on my back i can feel some pressure near my vagand im more tired then normal and my boobs hurt alot!! And im getting some light smooth white discharge...i know it's to early to test cause my period ended like on the 3rd. But my question is....could i be pregnant and showing signs now or is it just a weird month for me....and we had sex multiple time before my surprise period where he finished in me but i don't think i would of bleed if i was pregnant before this....please help any advise will help...oh amd this is the second day of this discharge when normally its only one day