On the pill (not strict on time&missed pill twice). had sex and ejaculated inside during entire ovulation period. period light&brown. is she pregnant?

Maybe: shouldn't be doing this is you don't want a baby. more than one pill missed a month is a big problem and if your partner does this frequently then a condom should be used.

Hard to tell: It can be hard to tell if a woman is pregnant because some of the symptoms seen in early pregnancy can also happen in non-pregnant women. A urine pregnancy test gives a reliable result if done correctly. One can test about 3 weeks after sex (3 weeks after when conception might have occurred) or 1 week after a "weird" or missed period. An Ob-Gyn doctor can evaluate persistent or worrisome symptoms.