Best time to start belly cream

After 12 weeks everyday before bath used to massage with Alovera Jell plus olive oil (mixed equal parts, note: I just used normal cooking olive oil) After shover applied bio oil as well(from week 20). It actually worked for me, my baby decided to stay till 40W 2D, but still had no stretch marks at all. It was a bit tiring to do it everyday, but it worked for me 🙂