Getting my hopes up lately

My SO has been making me get my hopes up lately about being pregnant. I've been feeling really nauseous lately especially around food& my boobs have been really heavy& sore. I try to never get my hopes up because we have been trying for over a year already so I always say nah I'm not pregnant. But my SO keeps saying "Your pregnant!" everytime I say I'm nauseous or anything about my boobs. I keep telling him it isn't very likely but he still keeps saying it& I keep thinking what if. Sadly I know it isn't very likely though, we've only had sex twice this cycle both being around a few days after my period because he's been super tired lately as he's a mechanic so he gets off& doesn't want to do anything 👎🏻