Oo, perfectly normal yan! When you stop taking the pill, sometimes it takes a few days to a couple of weeks para bumalik ang period mo kasi ang hormones need time to settle. A few of us mums noticed na either delayed agad or super heavy ang first one after stopping, so it really varies from person to person. But if wala ka pang period after 3 weeks or so, or kung worried ka talaga, better check with your OB lang para masigurado lahat okay, mas makakatulog ka ng mahimbing hehe!