Can I bury myself?

[Parnate]

I am planning to ctb in a nearby forest. But people do visit there for trekking etc. I was thinking that before I ctb I dig a ditch and lay down in it and once I have consumed the poison I cover myself with the mud. But again I am afraid about covering my face and head as I won't be able to breathe. The reason is simple I don't want to be found, at least not until September cause that is when my sister will deliver her baby, my sister is pregnant right now and I am afraid my death will affect her pregnancy, she had issues conceiving and she is 34 already so I don't want to cause her and her baby any pain or suffering.