What's yalls thought?

I'm last period was Dec 14th is when I started. My app said I was gonna start my next one jan 16th. It is usually right or a day before or after. On Jan 14th I was super naseaus where I felt hungry but was scared to eat. I felt like that when I was prego the first pregnancy. The 15th I was naseaus too we went out to eat with family fir daughters birthday but couldn't eat alot bc of the naseau. The 16th. I had some spotting/light bleeding, no clots till the 18th. Not my normal period blood. Yesterday and today I've had some nasea and lower back pain. I've read to not take a test till 5 days after implantation bleeding to get a positive. So that would be wed/Thursday this coming week. What's yalls thoughts? Could I actually be prego?