Could I be pregnant??

Ok here’s the run down…

I had my period April 1-5. I did the do on the 10th (no ejaculation but always a possibility of precum right?) which was also the peak day of ovulation. I had another period recently April 25-29. This period was kinda odd to me (or I could be overthinking it) but I only cramped the first day and it was very mild, little to no cramps really. & by day 3 I had a light flow when usually that doesn’t happen until the last day. Of course now I am in another ovulation window. I had some wine on April 28th and the next day at 3am I woke up out of my sleep and threw up. It was only foamy spit. weird but I went back to sleep. Once I got up for work hours later I was feeling nauseous and actually threw up a few times before I went to work/on the way to work (had to pull over). It was still foamy and yellow (of course it could be stomach bile). that went on for a few hours until I could calm my body down and get some sleep.

Ok now that i’ve got the details out the way. I currently may be psyching myself out but I did go to working thinking I would be find but wasn’t. I helped someone and he smelled very strong of cig smoke and it triggered me again. ew.. um I’ve had a headache yesterday and today, random pains/cramps, and I’m bloated AF. Should I be worried or am I in the clear? My next period start date says May 20th. I also saw a cat yesterday which is super weird because as long as i’ve lived in my apartments I’ve never seen a cat before and Ik the cat myth thing about pregnancy. I just want to be sure lol I could just be overthinking.

p.s. sorry for such a long post I just wanted to mention everything. Thanks!