What is the rule when it comes to weakening contraception? I would like to find out ( I have been using Evra patches for about 2 years without a break ) if the previous cycle looked like this: I had an antibiotic, surgeries, an exceeded dose of paracetamol (surgery on February 16th) until March 1st, I was actually still taking medication. On March 1st I took off the third patch, the bleeding came, and on March 8th I put on a new patch. I'd like to know if after a withdrawal bleed, if I put on a new patch on March 8th, does the protection come back immediately with the new patch after my period? Does it have to take 7 days of a new cycle and only with the second patch does the protection return? I know that the rule is 7 days, but I had a break for bleeding at that time and did the protection come back as soon as I put on the new patch?
And one more question, if the intercourse took place on March 17 and I put on the second patch on March 15, can I already say that contraception protected me?