Had sex w/ my gf when on ovulation. now 16 days after her period is still missing. we used condom. she preg? she is tired and feels bad.. help please

Do UPT: condoms have a 10 percent failure rate. If your gf has missed her period do a preg test

Pregnancy test: time to test for pregnancy: you may want to consider double barrier contraception: CONDOMS PLUS- spermicidal foam, jelly, sponge, vaginal suppository, diaphragm. Open communication and need for oral contraceptive pills is another alternative.

Possibly: She could be pregnant as the condom is not 100%effective. Get a home pregnancy test done and see a physician for follow up