Could these be pregnancy signs

Margaret
So this month the Doctor put me on  metformin and  letrozole. I took it just how I was supposed to me and my husband had sex ever other day starting the day I was off my period till after ovulation. 2 days after ovulation ended I started to feel very bloated in the morning feeling like I have to poop really bad but it didn't go away. And I have been exstremely thirsty. I'm not usually thirsty I don't hydrate like I'm supposed to usually so it doesn't bother me not drinking for a while and the past 2 days I'm so exstremely thirsty could this maybe be a pregnancy sign?