How to withdraw from cannabis?

For a start I am around 16 weeks pregnant and I didn’t know! I had irregular periods and Me and my partner haven’t been lucky with conceiving. It’s a real shock!

I have been a smoker as it’s legal here. But I want to stop now I found out!!!! I’m worried about cutting it all together may cause more harm?

Any suggestions or advice on how to go through withdrawal without it being harsh!

P.s please don’t judge.