Vaginal Probiotic while TTC

I was wondering if it’s safe to use vaginal probiotic capsules around 2-3 dpo. Unfortunately I’m the type who is super sensitive and very easily experiencing some discomfort especially during the second half of my cycle when it’s the most annoying!! There is nothing serious I guess, I was at my doctor 3 days ago and I was completely fine, but I don’t want to risk that it becomes an infection if I don’t use anything. The probiotic I’m usually using is completely safe during pregnancy, but I don’t know if it can have a negative effect on ttc. Any advice?