My girlfriend and I had sex about a week and a half before her period was due with a spermicidal condom on. Now she five days late and I'm really worried. We took a pregnancy test and it came out negative. I keep hearing that you can take a HPT after a missed period but, isn't there still a certain amount of days you need to wait regardless of a missed period? My worry, even after we took the HPT is that we had sex so close to her period that the test wouldn't be accurate for another week or so. Also, do spermicidal condoms work pretty well?