Is my girlfriend lying to me about taking Birth Control?

The way birth control pills work, a woman has to take them every day except when she's on her period (the so-called sugar pills). It's not like a condom or a barrier method (sponge) where you only take it/use it when you're sexually active. They're only effective when taken daily over a period of time regardless of whether she's sexually active or not. In short, it's entirely possible that your LD friend isn't sexually active but is still on the pill.

One other thing: "if" she's sexually active, prior to meeting you it's none of your business. Nor is it her business if you were sexually active prior to meeting her. Do yourself a favour and don't ask questions like this.

Sex is often a spontaneous thing. The Pill can take up to 60 days to be effective which is why many women chose to stay on it. You should be happy she is on BC, since most women wouldn't be so prepared. Since she wants sex it would make sense for her to stay on it.

Oral contraceptive isn't just something a woman can start, then stop, then start again when she feels like having sex. In order to be effective it must be taken daily over a period of at least 90 days. A woman who has gone on oral contraceptive would not want to stop because of a hiatus in her sex life. Being on oral contraceptive does have a few benefits, as in lighter and more predictable menstrual periods (the pill works by controlling female hormones).

I'd also guess that she is probably having sex, but didn't see any reason to tell you that.

1) It's really none of your business WHY she is taking it.

2) Assume she's NOT taking it and act accordingly.

3) If you don't trust her, why are you going to put your penis in her vagina?

you need to chill brother just go with the flow !! some girls stay on the pill and doesn't mean that she is sexually active bro.

1) Always wear a condom. Always. Not only for birth control (even if your partner is already taking the Pill or using other methods), but to protect yourself from STDs.

2) If you suspect that someone is lying to you, whether it's about birth control or something else, then it's probably a bad idea to engage in a very intimate activity such as sex with them.