unwanted

hi mommies! i was wanna ask if pano ko macoconquer tong feeling ko na sobrang insecure and unsecured. my partner is a married man but they were separated for 1yr before i met him. now the wife wants to comeback. and something happened. we had alot of issues sa relationship namin and to the point na nasaktan nya na ko physically. i really dont know kung mahal niya ako or he is just staying for my baby kasi di sila magka anak ng asawa nya. i just worrying baka my ganun ayang plan. hes living with me right now and until now wala parin syang clear decisions and plan para samin dalawa. i am 13weeks pregnant today. mommy any advice po kung ano dapat kong gawin?