I have been 28 days on the dot since switching to Ortho Tri Cyclen and its generic form in December. My period is due today. It normally shows no later than 2PM. It is now 4:45 and I have not seen a drop of blood. I normally take my pill at night, but last week (for about 5 days or so) I forgot and took it the following morning. This isn't the first time, but I don't think I had forgotten that many days in a row. I have missed pills and still had my period on time, though. Will taking them late affect my cycle?

THANKS!

Yes, taking them late can affect when you have your withdrawal bleed. Don't be surprised if your cycle is messed up a couple of times due to having taken it late.

You're dealing with a potent steroid hormone which can cause many different issues when not taken correctly. Weird bleeding or not bleeding on time is probably the most common side effect among steroid pill users.

It started around 6:30 or 7:00 last night.