Walaikum Asalam Amina,

Thank you for your question. 

Who said you can’t be spiritual during your menses? On the contrary, you can maximize on speaking directly to Allah Almighty and packing your duas (supplications) during this period. We learn from the hadith that the Messenger of Allah says:

Verily supplication is worship. [Related by the four Imams].

So, make dua and connect with Allah, also read these previous answers we provided before to get more tips, insha’Allah.

http://aboutislam.net/counseling/ask-about-islam/how-to-keep-connection-with-god-during-menstruation/

Is Menstruation a Punishment from Allah to Women?

How to Make the Best of Ramadan During Menstruation?

I hope this helps. Please keep in touch. 

Salam.