I'm TTC and 4 days till my expected period. Last night my 3 year old crawled up in bed with me and…

I'm TTC and 4 days till my expected period. Last night my 3 year old crawled up in bed with me and fell asleep with her head laying on my pelvis while I was sleeping on my back. I have no idea how long she was like this. I woke up from pain and pressure on my pelvis from this and got her off of me, but I am freaked out that if I am pregnant that the reduced blood flow to my pelvis during that time affected the baby negatively or could cause a miscarriage. Has anyone ever had this happen before? How did things fare? From now on I'm protecting my pelvis by sleeping with a body pillow between my knees covering the pelvic area, but praying no harm was done.