Baby aspirin or other things to take wjen ttc

Desiree • Trying for my rainbow baby... i lost in june.mommie of a 3yr old & of an angel ♡♡
Anyone know what baby aspirin does?? And what other things are good .ive been pregnant 2x already one with my 3 yr old son :) and my second ended in miscarriage :( im ttc again since my mc in june. Is the bby aspirin with the bby meds?