Nag spotting tapos nagpregnancy test pero negative

August 26-29 last period ko. September 27-29 nag spotting po ako , hindi po regla spotting as in spotting. Then October 3 and October 5 nag spotting nanaman po ako. Itong araw po nag pt ako, negative po lumabas. Pero lahat po ng symptoms ng early pregnancy naranasan ko, morning sickness, fatigue , moodswings at yung iba pa po. Need ko po ng answers nyo. Ano po need kong gawin?