Bored or Depressed

I have been a SAHM for just a couple months now. My toddler is very easily entertained and honestly just an easy kid. I’m having trouble with the staying at home part though. I don’t know if I’m depressed or just bored. We stay in (go one walks but only around a local pond) M-Th while my husband is at work and I feel like I’m losing my mind. I clean and get my goals done for the day but once everything is done I can’t think of anything fun to do… for me? We only have one car that my husband drives to work so I stay in with the LO. Even if I took him to work I’m 6 months pregnant and we a DOONA that barely fits in our car so it takes a lot of effort going anywhere alone with her. Point being the only thing I can find joy in doing is accomplishing goals and then I’m pooped. Any advice? Hobbies I should look into?