Should I start zepbound?

For reference I’m 175 lbs (so probably not the ideal candidate). I workout 3-4 times a week and eat very clean & healthy (high protein low carb diet). I just had my 3rd baby so I’m 5mo pp and have not had any weight loss since initially losing it breastfeeding. I’m at my wits end and so sad that I’m doing my best and weight isn’t budging. I also have hashimotos and pcos. I want to ideally lose 20 lbs (155lbs goal weight). I know it’s not much but would I need to be on zepbound for long? My Dr prescribed me the lowest dose of 2.5mg. I’m scared of side effects and also don’t know what to expect. Thoughts? Anyone have any experiences they can share? Very hesitant with this whole thing still.