Help...

Alyssa
Ok so I've had my period 2 weeks ago well on my last day me n my fiance made love bcuz we r trying for a baby well Saturday and Sunday I noticed I was having light brownish pinkish blood when I wiped or on a panyliner today I've had nothing I've felt sick for the past 2 days n I'm on my fertile days right now. Could I be pregnant? And what should I do?