Not baby related but looking for some advice x

hey lovelies, need a bit of advice. I've got the worst feeling ever, I'm sure my partner is cheating on me. he's been very secretive with his phone and spending more time at the "gym" And not answering his phone to me ever. I know he's entitled to do what he wants and go where he wants but I'm sure he would answer my texts or calls. he goes hunting on a weekend so he's out from 3am till 2pm and he says he goes the shooting range afterwards, I said I'd go with him but he says "it's no place for a women" And expects me to put his tea on the table when he gets home. I'm 33+2 and feel literally so low about myself and body image and this obvs isn't helping. is there anything I can do? should I ask him outright or should I just leave it alone and hope that I'm not right :(