Late Period and no sex drive

Faith

Period was due on the 7th, its reg and have been moody. No period, test was negative on the 7th. My sex drive is nothing. I havent wanted intercourse in almost 2 weeks. Any idea why sex drive is low and no period?

Side note - When i was pregnant with my daughter, i didn't have my period, and i wasnt horny or perverted for the first trimester