Is there a chance of pregnancy if you are on birth control pills and your partner pulls out and then 2 days later when you wipe you see light pink?

YES YES YES!!! Being on the pill does not guarantee that you will not become pregnant. If you take it consistently, every day and the same time - and do not mix it with antibiotics and other medications that can lessen its efficacy - most pills will give you about 97% protection against pregnancy. That's a 3% chance you could become pregnant...IF you abide by the rules. The more infrequently you take it, the less protection you have. Some women have periods months into pregnancy...

If you think you may be pregnant...take a test. It can be dangerous for a baby if you remain on the pill after conceiving.

Birth Control pills are not 100% effective at preventing pregnancy and only protect you 98% against pregnancy. Because of this, there is a chance of pregnancy. A 2% chance of conceiving while on birth control pills. When you miss pills and have intercourse unprotected, the chance of pregnancy increases because the hormones contained in the pills are gradually decreasing from your body and you're not as protected against pregnancy.

The pink spotting, if pregnancy related sounds similar to implantation bleeding. If this is implantation bleeding you cannot do a pregnancy test for another 2 weeks because the Embryo will of only just implanted and began releasing HCG.

The spotting may also be caused by a UTI (urinary tract infection), hormonal imbalance, from missing a pill (withdrawal bleed), irregular periods or due to a yeast infection.

It is best to see your doctor to determine if you have a infection. Good luck.