Are Delayed Periods Symptom Of Menopause?

yes...i am almost 50 ....in april....i was 10 days late for my period last month. i haven t had my period since....is there any chance i could be pregnant. had unprotected sex dec 12....my period came dec 27. i have always been 26 days regular. last period was dec 27....it was a full week regular period. am i just starting menopause? can i be pregnant and still have a regular period? i do NOT want to be preggie..took a hpt around the 23rd of december....negative.