TTC, but is it the right time?? 🤔

I been married for 3 years and together for 11. I'm 28 years old and fir the past 2 months I feel like I want to get pregnant. But then at times I feel scare. I don't know if is the right time.

I'm finishing my Masters and also I work part time.

Should I try before or after I finish my graduate studies?

Also my SO will start in a new job in 1 month and will be out for 4 weeks.

Should I wait after he returns?

I'm really confused. I want to but many things around me makes me think.

Please give me your advise.