It's been 44 days since my last cycle. pregnancy tests are negative. i've been using vcf. can vcf cause a delayed period or am i likely pregnant?

Unlikely: If the pregnancy tests are negative, it is unlikely that you are pregnant but vaginal contraceptive film is not a very reliable form of contraceptive if used alone. It is a spermicide and works by killing sperm. Like other spermicides, it is far from 100%. You need to use a condom with it at least but would be better off with a more reliable method. You still need to see a doc for the late period