I don’t know what this is!!Pleasee help me

So about a week ago me and my boyfriend had sex and we used johnson and johnson baby oil gel while having sex.A day after that,I started my period and before i started my period I felt these little bumps but it was like 1-3 of them,but after my period it was a lot of them.They do not itch or burn,I cant even feel them but I know they are there.what are they?????!!

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if they dont itch or hurt that would imply a yeast of bacterial infection

okay.Thank you!!