My period was 2 days late and i had unprotected sex. im 39, took plan be within 2 hours of this. i had brown spotting for the day. i have recently started new medication for migraines?

Normal women will occasionally skip a cycle or two for a variety of reasons. If the delay is due to pregnancy a simple urine pregnancy test would likely be positive. Plan B taken as cited is usually adequate to stop pregnancy from occurring. Whether the unnamed migraine medicine has anything to do with the change is unknown.

Conception occurs within day or so of the sex. It takes about 3 weeks for the embryo to make enough HCG for a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period. If the result is negative repeat the test in 4-5 days. Use first morning urine and follow instructions for the test carefully