Help -thin lining when periods due

iv

My periods irregular due to coming of depo in July went to my first apointment for

<a href="https://glowing.com/glow-fertility-program">IUI</a>

and she said my lining is very thin for were I am in my cycle that the dr will talk to me about it. I don’t see him till Friday so obcourse I came home and googled it says thin lining can cause miscarriage if you get pregnant is this true ???

I had two kids the first after depo I assume my lining was fine because I carried fine so can something else cause this. ??

Can I still have

<a href="https://glowing.com/glow-fertility-program">IUI</a>

??

What causes this ?

Has anyone else had this ?

Anything I can do to fix it ?

Thanks I’m just worried

Last period 22nd December..