No you pathetic fucking virgin loser.
"lol" these days is just used to lighten a conversation so it doesn't become awkward, not actually "laugh out loud"
jesus dude what are you, 60?
It was probably "hey no problem" as this phrase sounds like quite an aloof reaction to what she said. You did nothing wrong really, just answered in an off key and somewhat funny way. Play it cool and your mom will even consider it cool, of course this is assuming she doesn't already find you endearingly awkward.
Kek. That's cringey as shit,, but your pretty lucky anon.