Do I sound pregnant?

My period was from September 28th-the 1st of October. The 29th I had drank 3 twisted tea cans and the next morning I was throwing up bile (from 3 twisted tea cans, which is not like me). My MIL likes to joke and she kept saying “see you’re 104 lbs and you have morning sickness” I just blew it off and said uh no. Within a matter of 4 days I’ve gained 2 lbs. I’m now 106.4. I have a hard time gaining weight so I’m unsure how I’m gaining weight so quick all of a sudden. I’m on the birth control patch (so I know my chances are less likely). My period was hella light but my period is usually light anyways. I wanted to try out period panties for the first time and did but I wasn’t bleeding enough to even serve the period panties purpose. When I rinsed out the period panties it’s says to rinse them out until the water is clear (expect the water was never bloody b/c I didn’t bleed much of anything). I go to my female dr next week also so I guess we’ll see what’s really going on. & earlier my MIL was cooking something and I had to go outside b/c the smell was very strong to where I couldn’t deal. Idek if I could even be pregnant since I had a period but I hear that a lot of times you can mistake implantation with your period(?) so idk. What do y’all think? Me and my SO did the deed sometime in September but I didn’t write it down so idk what day. The last day I have it wrote down was August 27th and I got my period August 30th-September 4th.